12 best marine batteries

Marine batteries are specialized batteries designed for use in boats, yachts, and other marine vessels. These batteries are a crucial component of a boat's electrical system and play a vital role in powering various equipment and accessories on board. Here are some key points about marine batteries:

  1. Types of Marine Batteries:

    • Starting Batteries: These are designed to deliver a burst of high current to start the boat's engine. They provide a short burst of power and are not intended for deep discharges.
    • Deep Cycle Batteries: Deep cycle batteries are designed to provide a steady, consistent flow of power over an extended period. They are ideal for powering onboard electronics, lights, trolling motors, and other accessories.
    • Dual-Purpose Batteries: These batteries combine elements of both starting and deep cycle batteries, making them versatile for boats that require both engine starting and accessory power.
  2. Battery Chemistry:

    • Lead-Acid Batteries: Traditional lead-acid batteries are commonly used in marine applications due to their reliability and cost-effectiveness.
    • AGM Batteries (Absorbent Glass Mat): AGM batteries are a type of lead-acid battery known for their maintenance-free design, durability, and ability to withstand deep discharges.
    • Gel Batteries: Gel batteries use a gel electrolyte and are also maintenance-free. They are resistant to vibration and can perform well in rough marine conditions.
  3. Battery Sizes and Ratings:

    • Marine batteries come in various sizes and ratings to accommodate different boat sizes and power requirements. Common sizes include Group 24, Group 27, and Group 31.
    • Marine batteries are typically rated in terms of ampere-hours (Ah) or reserve capacity (RC), indicating their capacity to deliver power over time.
  4. Maintenance and Care:

    • Proper maintenance is essential to prolong the life of marine batteries. This includes regular charging, checking and maintaining proper water levels (for flooded lead-acid batteries), and ensuring secure connections.
    • Using a marine battery charger specifically designed for your battery type is recommended to avoid overcharging or undercharging.
  5. Charging Systems:

    • Marine vessels often have charging systems, such as alternators, solar panels, or shore power connections, to recharge batteries while on the water or at the dock.
    • Battery isolators or combiners may be used to manage multiple batteries on a boat, ensuring that they receive an appropriate charge.
  6. Safety Considerations:

    • Proper ventilation is crucial when using lead-acid batteries to prevent the buildup of potentially explosive hydrogen gas.
    • Inspecting and replacing damaged or corroded battery cables and connections is essential for safety and optimal performance.

Marine batteries are vital for powering various electrical components on boats, from starting the engine to running lights, navigation systems, refrigerators, and entertainment equipment.Choosing the right type and size of marine battery is essential to ensure a reliable and efficient power source for your marine vessel's needs. Proper care and maintenance are key to maximizing the lifespan and performance of marine batteries.

Below you can find our editor's choice of the best marine batteries on the market
  

Interstate Batteries 12V 35AH Sealed Lead Acid (SLA) AGM Deep Cycle Battery (DCM0035) Insert Terminals

Interstate Batteries

Based on 518 reviews Check latest price

Product description

SLA1055 Sealed Lead Acid battery from Interstate Batteries. Power your performance with the right choice in rechargeable Sealed Lead Acid (SLA) batteries for your business applications. Constant, long-lasting performance for large, discharging and charging applications like home security systems, push mowers, electric mowers, Murray riding lawnmowers, burglar alarms, and more.

  • Interstate Batteries Deep-Cycle mobility product, our DCM0035 Replacement battery fits many products such as Jazzy Chairs, Leisure lift, Pride Mobility Scooters, Ranger All Season, Kubota mowers, Invacare battery, Hoveround MPV5, MPV4, MPV3, MPV2, MPV1, & other Hoveround products batteries, Bruno wheelchairs. This product is not a replacement for golf cart batteries

User questions & answers

Question: Will this replace a dcs-33uncr
Answer: I'm uncertain of this
Question: what size bolts for the battery leads
Answer: It is a 1/4 in. bolt but finely threaded. Not just any 1/4 in. will work.
Question: if i purchase interstate dcm0035 and there is a problem with battery - exchange locally
Answer: All of our interstate battery suppliers will warranty and exchange battery as long as you have proof of purchase
Question: Will this battery work with the MinnKota Trolling Motor Power Center? What is the group number? Thanks
Answer: Yes. You will get maybe 4 to 5 hours run time on this (pending your speed) If you are planning longer trips and troll constantly and at higher speeds I recommended something around 1000. Higher the number the longer run time on the trolling motor. But yes this will work

Product features

Interstate Batteries - Deep Cycle Mobility Battery (DCM)

Key Features:

The DCM0035 is a maintenance free, rechargeable DCM, 12V 35AH battery. The battery is made using VRLA Technology to prevent spilling and over-pressurization and has a long life for deep discharge uses. To get the longest life out of your battery, it is suggested to use it in applications that will regularly discharge and recharge your battery. We encourage you to recycle, just ask us how!

Optima OPT8016-103 Batteries D34M BlueTop Starting and Deep Cycle Marine Battery

Optima

Based on 855 reviews Check latest price

Product description

Optima D34M BlueTop is designed as a dual purpose battery, both starting and deep cycle for people who need a sure-starting, strong cranking, and maintenance free power source for their boat or RV, even in harsh conditions. The unique SpiralCell design provides a strong and clean power source, ensuring the safety of you, your family and the environment. The higher reserve capacity gives you a longer shelf-life to give you the power when you need it, where you need it. This battery is designed to be used with recreational vehicles or boats with large accessory loads. Refer to the user guide for troubleshooting steps. Case Material: Polypropylene

  • 12-Volt, 750 Cold Cranking Amps, Size: 10 inches x 6 7/8 inches x 7 13/16 inches tall, Weight: 43.5 pounds, Dual SAE & 5/16 inches Stainless Steel Stud Posts. 55 Ah C20 capacity
  • Optimal starting power even in bad weather
  • Mountable in virtually any position. Works well as a boat battery or RV battery
  • Fifteen times more resistant to vibration for durability
  • Reserve capacity of 120 minutes for constant performance
  • Cranking Amps - 870 Ampere / Marine Cranking Amps - 870 ampere

User questions & answers

Question: Which of the blue tops is the best battery for trolling motors
Answer: Blue top marine. Blue top with the light grey sides it has the most minutes out of all. I use them for the minikota riptide ulterra112 for saltwater fishing and they work great
Question: If a battery has an issue within the warranty period, is the return shipping covered by Amazon or Optima
Answer: There is no return shipping on the batteries...hazard. explain the problem and they will replace it if it was not from freezing or abuse etc. Just dispose of battery thru normal exchange at local repair shop , tire store etc
Question: How many amp hours yotal in this battery
Answer: As you can see it is rated at AH55 which is 55 Amp Hours
Question: Why is the "shipping time" 1-3 months ? Why do people sell items they "apparently" do not have, or, haven't been made yet ? I need a battery now
Answer: We have this item in stock and ready to ship, with 1 and 2 day shipping available. I'm not sure where you have seen the 1-3 month time frame.Sincerely,ShipSound Support

Product features

Going Farther for Longer

Installing an OPTIMA BlueTop high-performance AGM battery in your boat or RV means exceptional running time and more recharges than you’d get out of a traditional battery. It’s the perfect marine battery for boats with trolling motors, extensive electronic systems, and works well as an RV battery for RVs with creature comforts that tend to drain batteries quickly. On top of providing outstanding vibration resistance, the BlueTop efficient power delivery and faster recharge time mean you’ll spend less time worrying about your battery. This means more time for fun. Again and again. This flexible boat battery and RV battery is ideal for those who need a sure-starting, strong-cranking, maintenance-free power source.

SpiralCell Technology

At the heart of every OPTIMA battery is a series of individual spiral-wound cells comprised of two pure (99.99%) lead plates coated in a precise coating of lead oxide. One coated plate is positive and the other is negative.

The unique manufacturing process of spiral winding continuous lead plates is far more precision-controlled and expensive than building traditional flat plate AGM batteries. Custom automated cell-winding machines are required to maintain the close tolerances required to maintain quality and performance. Critical tolerances, temperatures, humidity and automated processes are maintained and constantly monitored.

OPTIMA has built over 100 million individual spiral cells since the early 1990’s. No one knows how to build the highest quality and best performing spiral-wound batteries better than OPTIMA.

RedTop

For normal engine starting where an alternator immediately monitors the state of charge and provides energy to the battery whenever it is needed.

This would describe most stock vehicles, including: automotive and RV underhood starting, heavy equipment where starting is the primary function, and diesel vehicles without aftermarket electronics.

YellowTop

Use this when electrical loads are higher than average, or when the discharge cycle is more than typical engine starting, such as vehicles with multiple electronic accessories and vehicles without alternators. This can also include vehicles with a lot of factory electronics such as power sliding doors and a DVD player. Examples also include: racing vehicles without a charging system, dedicated drag racers, diesel powered vehicles with aftermarket electronics, and vehicles with inverters, winches, or other accessories.

BlueTop

The BlueTop starting battery (dark gray case) is to be used when a dedicated starting battery is required and it should never be used for cycling duty. Use a BlueTop starting battery for marine applications and RVs when the battery's only function is engine starting.

The dual purpose BlueTop (light gray case) can be used for both starting and deep cycling -- it is a true deep cycle battery with extremely high cranking power. Uses include: trolling motors, marine applications with heavy electrical accessories, and RVs.

Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray

Renogy

Based on 351 reviews Check latest price

Product description

Looking for a reliable, high performing battery with practicality in mind? Renogy’s 12V Deep Cycle AGM Battery is an excellent choice for standby or daily power needs. Built tough with a leak-proof design, this maintenance-free battery was designed with solar energy storage applications in mind and provides optimum performance even at freezing temperatures. Ensure that your vehicle or off-grid solar system stays powered on with Renogy’s AGM batteries. Need a little more power? Connect several batteries in a series or parallel battery bank with Renogy Battery Interconnect Cables.

  • Maintenance Free: Manufactured with thick absorbent glass mat (AGM) separators and advanced valve regulated technology, Renogy Deep Cycle AGM Batteries save you from acid leakage and frequent maintenance
  • Excellent Discharge Performance: Proprietary quinary alloy plates and specially treated plate grids enable low internal resistance and high discharge currents of up to 10 times the battery rated capacity
  • Long Shelf Life: Made of high purity materials, Renogy Deep Cycle AGM Batteries reduce the monthly self-discharge rate below 3% at 77℉ (25℃), which is 5 times lower than their flooded counterparts
  • Wide Operation Temperature Range: Improved electrolyte formula ensures stable battery capacity and outstanding discharge performance at low temperatures below 32℉ (0℃)
  • NOTE: We highly recommend installing the battery upright. It is allowed to install the battery on its side only if there are special reasons for doing so. DO NOT install the battery upside down.

User questions & answers

Question: How does one buy more than 3 batteries? I need 4 and the pull down menu stops at 3. Do you advise placing two orders of two
Answer: Yes.
Question: What is the gassing voltage for these batteries
Answer: Gassing voltage varies with temperature. For gel cells it’s about 2.35V per cell. Keep your charging voltage below that and no problems. For a standard 12V with 6 cells charging below 14V is safe.
Question: I have a 2000 12v inverter. what size solar charger do iI need?(how many panels and how many batteries to get the best output on this inverter
Answer: What is your RV amps? Mine is 30 amps, so solar charge controller MPPT had to be 30 amps as well. Solar panel watts? You can put 4 solar panels at 100 watts each max on this MPPT charge controller. This will easily charge up two 100AJ 12V batteries. With 2000 Watts inverter, maybe add another 100 AH 12V Deep cycle AGM battery to have enough power. I plan to get a 1500 Watt Pure Sine Inverter for my 2 AGM batteries 100 AH 12V each plus 3 solar panels at 100 watts each. Don't overthink this. Too many variables on amp draw and sun strength, angle, time of year, etc. Just ball park it.
Question: Can power a small tv for camping
Answer: Yes you need a inverter.

Product features

Renogy Deep Cycle AGM Battery

Renogy's deep cycle AGM batteries were specifically designed for solar energy storage applications. Leak-proof, spill-proof and ultimately maintenance free, Renogy's AGM line is the ideal candidate for a battery meeting high quality performance. Whether it's for daily use or backup power, the Renogy AGM battery is right for you.

ProMariner 43012 ProSport 12 12 Amp, 12/24 Volt, 2 Bank Generation 3 Battery Charger

ProMariner

Based on 1 reviews Check latest price

Product description

Professional Mariner was founded over 35 years ago with one premise; to make boating more enjoyable! We pioneered a robust line of fully automatic, on-board marine battery chargers that provided the marine industry with a mainstream method of charging batteries in a short time without the need for storing or carrying portable battery chargers on-board. We haven’t looked back since. Moroccanoil Intense Curl Cream is a leave—in conditioner. It has no hold and will not increase amount of curls but will condition wavy to curly hair, defining and refreshing curls while protecting against frizz. Digital Multi-Stage Performance Charging: Fully charge and extend the life of your batteries - automatically charges, conditions and safely maintains all batteries on board for maximum time on the water

  • 2 Year Warranty
  • Energy Saver Mode
  • Storage Recondition Mode
  • Built-in Quality and Safety
  • Distributed-On-Demand Technology

User questions & answers

Question: Does this charger come with qiuck disconnect plugs on the positive and negative terminals
Answer: No, the charging cables are bolted directly to the battery terminals - you would have to modify your installation for quick disconnection
Question: how long are the supplied battery wires for this unit
Answer: Supplied with prewired 6' cables for 2 batteries. Factory extensions are available separately.
Question: Mine did not come with a terminal that connects to a battery. Am I supposed to buy an adaptor for it
Answer: I am in the process of returning the one i got. the model number was 43012m21, not just 43012. I contacted ProMariner and they told me that i was sent a custom model that had some female plugs on them without any adapters. I am a little annoyed because i paid more for this one than another link on amazon because this was in stock. I almost cut the cords and put on my own connectors but i felt that buying a new item i should not have to do this. you can buy the male adapters for the connectors but you would probably be paying about 15 to 20 dollars for making your own cables. amazon should be sending me the correct model currently but im hoping they dont just send me another custom model. hope this helps other people because it took some work to figure this one out.
Question: This charger comes with Intense Curl Cream? Where are the charger spec's
Answer: First of all What is Intense curl cream?

Optima Batteries 8027-127 D27M BLUETOP Starting and Deep Cycle Marine Battery

Optima

Based on 153 reviews Check latest price

Product description

Optima Batteries D27M BlueTop Group 27 Marine Battery have enough deep cycle power for stereos, GPS systems, bilge pumps, fish finders, and other high-demand electronics, while still providing plenty of cranking power to start the motor. These batteries have longer life, more vibration resistance, is completely spill-proof and mountable in almost any position and faster recharging capabilities. Damage from vibration can cause battery failure. The cells in an Optima battery are tightly compressed into supportive chambers and secured with solid cast cell connections resulting in 15 times more vibration resistance than traditional batteries. Tightly sealed cells allow for mounting in multiple positions without leaking or damaging your vehicle and glass-mat separators absorb electrolyte to eliminate acid spilling.

  • Pure lead spiralcell design allows for lead to be used in its purest form.C20 Capacity:66 Ah
  • Spiralcell technology for superior vibration resistance and extended life
  • Solid cast cell connections for increased durability and maximum plate height
  • Tightly compressed cells for added vibration resistance. Reserve Capacity at 25 Amps: 140 Minutes
  • This item is not for sale in Catalina Island

User questions & answers

Question: How many battery and what model of your product batteries needed for ac 220 volt for motor 3.49 amp to running it by inverter 3000 watts for 12 hours
Answer: The answer is way too many. 220 volts at 3.49 amps means 64 amps at 12 volts, which is the very near the 66 amp rating of the battery. Since the battery should never be drained below 50%, the answer is you would need two to run your motor for 1 hour, or 24 to run it for 12 hours. You'd be better off looking at some 8D lithium batteries. They hold 255 amps and can be run down to 20% of capacity. Please note it would be cheaper to run a generator.
Question: What is the warranty when purchased from Amazon
Answer: All optima's have a 2 year warranty.
Question: what is date of manufacture if buying 2 right now
Answer: Never buy this battery from Amazon. Amazon sent me a worthless battery, does not take it back, and does not refund your money. The Optimum dealers, or the company itself, will not accept the battery because you didn't buy it from the dealer. DO NOT BUY THIS FROM AMAZON. Find a dealer who will give you a warranty, and replace it if they sell you a dud. Learn from my expensive mistake. That's the only advice that really counts. (For me, I bought a great marine battery from Costco, and brought the Optimum battery to a recycler for disposal.)
Question: how many AH
Answer: On top of battery AH 66

Product features

Going Farther for Longer

Installing an OPTIMA BlueTop high-performance AGM battery in your boat or RV means exceptional running time and more recharges than you’d get out of a traditional battery. It’s the perfect marine battery for boats with trolling motors, extensive electronic systems, and works well as an RV battery for RVs with creature comforts that tend to drain batteries quickly. On top of providing outstanding vibration resistance, the BlueTop efficient power delivery and faster recharge time mean you’ll spend less time worrying about your battery. This means more time for fun. Again and again. This flexible boat battery and RV battery is ideal for those who need a sure-starting, strong-cranking, maintenance-free power source.

SpiralCell Technology

At the heart of every OPTIMA battery is a series of individual spiral-wound cells comprised of two pure (99.99%) lead plates coated in a precise coating of lead oxide. One coated plate is positive and the other is negative.

The unique manufacturing process of spiral winding continuous lead plates is far more precision-controlled and expensive than building traditional flat plate AGM batteries. Custom automated cell-winding machines are required to maintain the close tolerances required to maintain quality and performance. Critical tolerances, temperatures, humidity and automated processes are maintained and constantly monitored.

OPTIMA has built over 100 million individual spiral cells since the early 1990’s. No one knows how to build the highest quality and best performing spiral-wound batteries better than OPTIMA.

RedTop

For normal engine starting where an alternator immediately monitors the state of charge and provides energy to the battery whenever it is needed.

This would describe most stock vehicles, including: automotive and RV underhood starting, heavy equipment where starting is the primary function, and diesel vehicles without aftermarket electronics.

YellowTop

Use this when electrical loads are higher than average, or when the discharge cycle is more than typical engine starting, such as vehicles with multiple electronic accessories and vehicles without alternators. This can also include vehicles with a lot of factory electronics such as power sliding doors and a DVD player. Examples also include: racing vehicles without a charging system, dedicated drag racers, diesel powered vehicles with aftermarket electronics, and vehicles with inverters, winches, or other accessories.

BlueTop

The BlueTop starting battery (dark gray case) is to be used when a dedicated starting battery is required and it should never be used for cycling duty. Use a BlueTop starting battery for marine applications and RVs when the battery's only function is engine starting.

The dual purpose BlueTop (light gray case) can be used for both starting and deep cycling -- it is a true deep cycle battery with extremely high cranking power. Uses include: trolling motors, marine applications with heavy electrical accessories, and RVs.

ExpertPower 12v 33ah Rechargeable Deep Cycle Battery [EXP1233 ]

ExpertPower

Based on 820 reviews Check latest price

Product description

ExpertPower Deep Cycle Rechargeable Batteries are made with the highest quality of materials available. Our Lead Acid Batteries are typically used for: Home Alarm Systems, Uninterruptible Power Supply(UPS), Lighting Equipment, General Electronics, Home Security Systems, Emergency Systems, Medical Devices, Electric Scooters, Solar Collectors, Wheelchairs and many Other Applications. Whether it's the SECURITY of your home, the MOBILITY of your machine, or even just a personal HOBBY, be sure to use the most efficient batteries available.

  • Genuine ExpertPower Battery - The Most Trusted And Highest Reviewed Sealed Lead Acid Batteries On Amazon
  • Battery Type - 12 Volt 33Amp/10 Hour Sealed Lead Acid Battery
  • Quality Assurance - Crafted Wtih A Rugged Construction, Our SLA Batteries Are Ultra Durable And Utilize Absorbed Glass Mat (AGM) Technology Which Provides A Wide Temperature Range.
  • User Friendly - Easy, One-Time Installation Of Our Maintenance Free and Valve Regulated Batteries Will Get Your System Or Application Running In No Time At All.

User questions & answers

Question: Can you run a 5000 btu air conditioner using a 1200/2400 inverter? if so, about how many hours till the batt. is drained
Answer: Maybe six of them wired to gather might be enough power to start the AC unit. The answer is NO!
Question: Can i power a small fridge with this
Answer: If you're talking about a mobile ARB (Usually used in Jeeps) or a Peltier Junction type fridge, then it should run it for a few hours. Used with a 110 volt inverter to power a typical mini-fridge, and you might be talking only ten or fifteen minutes.
Question: Can I use a regular automobile battery charger
Answer: Unless your regular automobile battery charger has a circuit for AGM batteries you risk damaging the battery! Not all automobile battery chargers have this
Question: can someone tell me what size the terminal posts are
Answer: Terminal post is Dia. .325" bolt. Use a 3/8th socket to tighten the bolt

Product features

Rugged Construction and Durable Exterior

ExpertPower Sealed Lead Acid Batteries are made with the highest quality materials available. The high-impact resistant battery case is made up of a non-conductive ABS plastic. This material has a strong resistance to shock, vibration, chemicals and heat. ExpertPower Batteries are Built for Performance, but they are also Built To Last.

No-Spill Absorbent Glass-Mat Technology

In our AGM sealed batteries, the acid inside is absorbed between the plates and thereby immobilized by a very fine fiberglass mat. This along with the valve regulated, spill-proof construction of our batteries allows trouble-­free, safe operation in any position.

The truth, the whole truth, and nothing but the truth

What separates us from our competitors is one simple thing. We don''t compromise our quality in order to keep our prices low. Our product reviews are from real people who appreciate the quality they come to expect from us.

ExpertPower INC.

Since we first opened our doors in 1987 we have been bringing our loyal customers reliable products at reasonable prices. Nearly thirty years later, though our wardrobe has changed from the“Rad” clothing of the ‘80s to the Sophisticated of the 21st century, our values have continued to remain the same.

VMAXTANKS VMAX V35-857 12 Volt 35AH AGM Battery Marine Deep Cycle HI Performance Battery ideal for boats and 18-35lb minn kota, minnkota, cobra, sevylor and other trolling motor (12V 35AH, GROUP U1)

VMAXTANKS

Based on 424 reviews Check latest price

Product description

The heart of the VMAX is the unique physical and chemical structure of its plates. The special treatment and manufacturing process they undergo gains them unique reliability, strength and high performance far exceeding those of other Pb-Ca plates used in similar looking products. Using our specially designed Absorbed Glass Matt (AGM) between the VMAX plates, adds to it many physical and electrical advantages that make it superior to the Wet Lead Acid Batteries. This also maximizes the VMAX resistance to shocks and vibrations. Since the electrolyte is totally absorbed by the AGM, the VMAX is classified as “non-spillable and non-hazardous”. A tough Tank seals and protects the tightly packed plates delivering the VMAX in a 100% maintenance-free package. Though VMAX Tanks are best known for their long life span, their capability to recover after repeated deep discharges is what makes them the favorite choice for any application. est 4-9 HOURS (40LB/18LB) RUNNING TIME WITH 50-60% DEPTH OF DISCHARGE ON 18-40LB TROLLING MOTORS. (NOTE: LONGER EST. TIME APPLIES TO THE SMALLEST LISTED RANGE OF TROLLING MOTOR POWER WHILE THE SHORTER EST. TIME APPLIES TO THE LARGEST LISTED RANGE. DIVIDE EST. TIME BY 3 WHEN OPERATING MOTOR AT WOT WITH 100% DOD (Depth Of Discharge), OR BY 5 WITH 60% DOD) CHECK OUR FULL LINE OF VMAX MARINE BATTERIES FOR LARGER TROLLING MOTORS OR LONGER RUNNING TIMES.

  • Dimensions: L=7.7" W=5" H=6.1"
  • Also avilable as a battery kit: http://www.amazon.com/gp/product/B00HOUCLWE
  • Heavy Duty Grids: VMAX heavy duty lead tin alloys provide an extra margin of performance and service life in either float or cyclic applications, even after repeated over discharges.
  • Maintenance Free Operation: There is no need to check specific gravity of the electrolyte or add water to VMAX tanks during float service life. In fact, there is no provision for this type of maintenance.
  • RECOMMENDED CHARGER: VMAX BC1204 12V 3.3Amp

User questions & answers

Question: are the connecting posts 3/8 inch size lugs
Answer: Mine came with thumbscrews (bolts) that have a 1/4" thread size and a 1/2" shoulder on the bolt. The battery lug is about 1/2" in diameter and is tapped for the bolt. The battery lug is almost flush with the top of the battery.
Question: how well will this work for my watchdog backup sump pump system
Answer: not familiar with the sump pump system. If it is 12 v dc. I have run almost continuously a 55 lb trolling motor on it for over 4 hours and it still had power.
Question: I want to purchase this battery for my storage room,that doesn't have outlets,Which inverter power supply to use ? Thanks
Answer: doesn't anybody realize this is an electrical item and in order to answer these questions we first need to know the amperage or watts that your device uses and then AND ONLY THEN you can answer all these questions. Take the amperage draw of your device and multiply it by the hours you will use the device per day and this will give you the amp-hour rating of the battery you will need to run your device for a day. Make sure you multiply the answer by two since you don't want to discharge the battery more than 50% to extend its life. I can't believe that the people who own these electric trolling motors do not know the amp draw and refer to them by pounds thrust. This does not answer the question of what size battery you need for a specific run time per day, hour or various days.
Question: Why should I get this battery instead of a considerably less expensive Universal Power Group (UPG) battery with the same ah rating
Answer: VMAX batteries will be better for several reasons. Even though the amp hours are the same, all VMAX USA batteries feature high performance military grade plates. Also, the metal plates used in VMAX batteries are thicker. This results in a higher quality, longer lasting, and heavier battery (For example the VMAX857-35 weighs 25 pounds, the UB12350-D5722 weighs 22.6 pounds, both are 35Ah). The VMAX also includes a standard carrying handle, and features a tough and durable outer casing made of extra strong ABS plastic.

Universal Power Group 12V 100Ah Replacement Battery for Minn Kota, Minnkota, Cobra, Sevylor trolling Motor

Universal Power Group

Based on 172 reviews Check latest price

Product description

UB121000 12V 100AH - Absorbant Glass Mat (AGM) technology for superior performance. Valve regulated, spill proof construction allows safe operation in any position.

Common uses for the UB121000: Consumer Electronics, Electric Vehicles, Engine Starters, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Photography, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security.

  • UPG #45978 UB121000 12V 100Ah
  • Dimensions: 12.17 inches x 6.61 inches x 9.16 inches. Weight: 63.93 Lbs
  • SLA/AGM maintenance free, spill proof battery
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration
  • 1 Year Warranty

User questions & answers

Question: What battery case will this battery fit into
Answer: Group 27 sized box as this is a group 27 battery
Question: What group size is this battery
Answer: 12 x 6.6 x 8.2 inches ; 68 pounds BCI Group Number: 27
Question: How long it should last?I know it depends on load but is any average
Answer: Radek, after its fully charged expect 1150 to 1250 stored watts. How long it lasts depends on what u are running. I have 3 of them backing up my solar system. I recharge once a month and honestly there is almost no normal drain.
Question: What is the recommended amperage to charge this battery? I have the minkota mk 210. Is 5 amps enough to charge this battery overnight. 8hrs
Answer: up to 30 amps with a 12v agm charger . 50% DoD is 50 amp hours. Chargingin 50 Amp hours with 5 amps would take 13 hours. 10 amps 6.5 hours. Ah of battery needing charged/ amps of charger = x times 1.3= time

Optima Batteries 8020-164 35 RedTop Starting Battery

Optima

Based on 1 reviews Check latest price

Product description

Optima 35 RedTop is designed to deliver high power cranking ability even in harsh weather conditions. This battery is great for heavy use by hot rods and off-roaders with its leak-proof, high power, and starting ability. The unique SpiralCell design provides a strong and clean power source, ensuring the safety of you, your family and the environment. The higher reserve capacity gives you a longer shelf-life to give you the power when you need it, where you need it.

  • 12-Volt, 720 Cold Cranking Amps, Size: 9.38 x 7.69 x 6.75-Inches Weight: 31.7 pounds, SAE Posts
  • Reserve capacity of 90 minutes for constant performance
  • Optimal starting power even in bad weather. Case material is Polypropylene
  • Fifteen times more resistant to vibration for durability
  • This item is not for sale in Catalina Island
  • Fit Type: Vehicle Specific

User questions & answers

Question: is this possible to jump start
Answer: Yes. No jump start precautions.
Question: What do you do with the old core
Answer: Do Not bury this - it is full of lead and other dangerous chemicals including sulfuric acid. I hope everyone knows that is a joke.
Question: It says this will fit my 2011 nissian frontier sv but it requires a bottom adapter kit?? where to i buy one of these
Answer: It comes with the required adapter kit attached so all is good.
Question: whats the differance in the red top and the yellow top battery
Answer: I have a 1989 Fleetwood bounder 31 ft. This battery would only be used to start the engine which is very large. As I have a house battery to run the internal electrics. Can you tell me which is the best battery to get? Thank you for your time Bill

Product features

Gentlemen, Start Your Engines

The RedTop high-performance AGM battery is the ultimate starting battery designed to deliver a powerful burst of ignition power for a reliable start-up every time. It will withstand hard launches, extreme corners and is race proven for every road every day whether it's used as a truck battery, automotive battery, or for other applications. Its reputation as a truck battery or automotive battery is unsurpassed.

SpiralCell Technology

At the heart of every OPTIMA battery is a series of individual spiral-wound cells comprised of two pure (99.99%) lead plates coated in a precise coating of lead oxide. One coated plate is positive and the other is negative.

The unique manufacturing process of spiral winding continuous lead plates is far more precision-controlled and expensive than building traditional flat plate AGM batteries. Custom automated cell-winding machines are required to maintain the close tolerances required to maintain quality and performance. Critical tolerances, temperatures, humidity and automated processes are maintained and constantly monitored.

OPTIMA has built over 100 million individual spiral cells since the early 1990’s.

RedTop

For normal engine starting where an alternator immediately monitors the state of charge and provides energy to the battery whenever it is needed.

This would describe most stock vehicles, including: automotive and RV underhood starting, heavy equipment where starting is the primary function, and diesel vehicles without aftermarket electronics.

YellowTop

Use this when electrical loads are higher than average, or when the discharge cycle is more than typical engine starting, such as vehicles with multiple electronic accessories and vehicles without alternators. This can also include vehicles with a lot of factory electronics such as power sliding doors and a DVD player. Examples also include: racing vehicles without a charging system, dedicated drag racers, diesel powered vehicles with aftermarket electronics, and vehicles with inverters, winches, or other accessories.

BlueTop

The BlueTop starting battery (dark gray case) is to be used when a dedicated starting battery is required and it should never be used for cycling duty. Use a BlueTop starting battery for marine applications and RVs when the battery's only function is engine starting.

The dual purpose BlueTop (light gray case) can be used for both starting and deep cycling -- it is a true deep cycle battery with extremely high cranking power. Uses include: trolling motors, marine applications with heavy electrical accessories, and RVs.

Newport Vessels Trolling Motor Smart Battery Box Power Center with USB and DC Ports, Black, Medium

Torero Imports LLC

Based on 1 reviews Check latest price

Product description

The Newport Vessels Smart battery box power station is a perfect solution for protecting your battery while providing quick and clean access to hook up your motor's power cables to the Smart box's terminals. The Newport Vessels Smart battery box power station is also a fully functioning power and charging station. With a USB and a 12V DC power outlet, you can easily charge your most important devices while out on the water. The outer shell's power interface provides a visual LED battery meter displaying your motor's battery state. Also provided are a test button, and two waterproof breakers for both the 60 amp trolling motor terminals and the 10 amp boat accessory charging ports. The Smart battery box power station also has rubberized feet inserts built into the bottom, so that your battery box will stay put. The Newport Vessels Smart battery box power station is the ultimate accessory for all trolling motors, inflatable boats, and small boats.

  • 2 YEAR WARRANTY - We stand behind every product we make with industry leading customer service and a 2 year warranty.
  • EXTERNAL BATTERY PORTS - Safely and easily connect your trolling motor or accessory to the battery ports without opening the box.
  • DUAL INTEGRATED CIRCUIT BREAKERS - Integrated with 10 Amp and 60 Amp circuit breakers to protect your trolling motor and other accessories from electrical damage.
  • DIRECT USB CHARGER AND ACCESSORY PORT - Provides one USB Charger and one 12V accessory port for convenient connection of various DC accessories.
  • PRODUCT DIMENSIONS: 17 x 12 x 10 Inch, Fits Group 24 & 27 batteries, LED meter measures battery charge level (battery not included), Non-slip rubberized feet keep your battery box in place.

User questions & answers

Question: Can you charge battery inside the box
Answer: Hi, Absolutely! Just as long as the charger doesn't exceed 60 amps on the lid terminals or 10 amps through the accessory ports. If you have any other questions or need help with anything else, please visit newportvessels.com or call us at (866) 721-0002! Our hours are Mon-Fri, 8:30am-4:30pm Pacific Standard Time. Best, -NV Team
Question: Would this box work in an ultraskiff where it will be exposed to heavy moisture? Is it somewhat waterproof
Answer: Hi, The Newport Vessels Smart Battery Box is waterproof to rain and splashes of water, but it cannot be completely submerged. This would be a great fit for your Ultraskiff! For more information and specifications, please visit the product listing here: https://newportvessels.com/newport-vessels-smart-battery-box/ If you have any other questions or need additional help, please visit newportvessels.com or call us at (866) 721-0002! Our hours are Mon-Fri, 8:30am-4:30pm Pacific Standard Time. Best, -NV Team
Question: Can you use it for boat starting battery
Answer: Hi, Yes! Our Smart Battery Box is compatible with any 12V battery! For more information, please visit its product listing page here: https://newportvessels.com/newport-vessels-smart-battery-box/ If you have any other questions or need help with anything else, please visit newportvessels.com or call us at (866) 721-0002! Our hours are Mon-Fri, 8:30am-4:30pm Pacific Standard Time. Best, -NV Team
Question: By some of the dimensions given I think it may be close but will it really fit? I have a group 29 battery with the dimensions of 13 x 9 x
Answer: Hi, The internal dimensions are below: 13-3/8"Long x 7-3/8"Wide x 8-3/4"Tall It looks like your battery may be too wide for our Smart Battery Box. If you have any other questions or need additional help, please visit newportvessels.com or contact us at (866) 721-0002! Our hours are Mon-Fri, 8:30am-4:30pm Pacific Standard Time. Best, -NV Team

Product features

Newport Vessels Trolling Motor Smart Battery Box Power Center Black

The Newport Vessels Smart Battery Box Power Station is a perfect solution for protecting your battery while providing quick and clean access to hook up your trolling motor's power cables to the smart box's terminals. This box is also a fully functioning power and charging station. With the USB and a 12V DC Power Outlet, you can easily charge your most important devices while out on the water. The outer shell's power interface provides a visual LED battery meter displaying your battery's current charge. The box also features a test button and two waterproof circuit breakers for both the main 60 AMP trolling motor terminals and the 10 AMP boat accessory power ports. With built-in rubberized foot inserts, your battery and battery box will not slide around the floor of your boat. This Power Station is the ultimate accessory for Newport Vessels, Minn Kota, and MotorGuide trolling motors, jon boats, bass boats, other personal watercraft, RV batteries for accessory power and much more.

Standard Features

  • Built-in LED Battery Meter
    • Measure battery charge level with the push of a button.
  • External Battery Ports
    • Safely and easily connect your trolling motor or accessory to the battery ports without opening the box.
  • Dual Integrated Circuit Breakers
    • Integrated with 10 AMP and 60 AMP circuit breakers to protect your trolling motor and other accessories from electrical damage.

  • Non-Slip Rubber Feet
    • Non-slip feet inserts enable your batter box to stay in its place.
  • Direct USB Charger and Accessory Port
    • Includes one USB charger (5V - 0.5Amp) and one 12V accessory port for charging of accessories.
  • Fits Most Common Batteries (Battery Not Included)
    • Interior space fits the most common batteries Group 24 and 27. Interior dimensions are 13-3/8" Long x 7-3/8" Wide x 8-3/4" Tall.

Frequently Asked Questions

  1. Does this come with a battery? - No. You will have to purchase one separately.
  2. Does this device charge my battery? - No. You will have to purchase a battery charger.
  3. How long will this power my devices? - This entirely depends on the Amperage Hour Rating (Ah) of the battery you place inside of it. The Smart Battery Box doesn't hold any charge.
  4. Can I charge my battery while it is connected to the Smart Battery Box? - Yes! No need to open up the box.
  5. Can I use a lithium battery with this box? - Yes! However, the battery reader will not be accurate due to the higher voltage discharge on Lithium batteries.
  6. Can I place 2 smaller 12V batteries inside and connect them in parallel? - Yes! This keeps the output at 12V and is compatible with the Smart Battery Box.
  7. Can I place 2 smaller 12V batteries inside the Smart Battery Box and connect them in series? - No! This creates 24V and can damage the Smart Battery Box.
  8. Can I have 2 Smart Battery Boxes connected in series to power my 24V device? - Yes!

Built-in LED Battery Meter

Measure battery charge level by pressing and holding the test button.

Direct USB Charger

Includes one USB charger (5V - 0.5Amp) that can chard phones other devices that utilize a USB cable. Protected by a 10 Amp circuit breaker.

Direct 12V Accessory Port

12V accessory port for charging of accessories. Protected by a 10 Amp circuit breaker.

Fits Most Common Batteries (Battery Not Included)

Interior space fits the most common batteries Group 24 and 27. Interior dimensions of the box are 13-3/8" Long x 7-3/8" Wide x 8-3/4" Tall. Can fit batteries measuring up to 13-3/8" Long x 7-3/8" Wide x 9-3/4" Tall.

Support

Our California based customer service team is dedicated to your satisfaction with your purchase. If you have any questions or concerns, please do not hesitate to contact us via our website or phone!

ML35-12 - 12 Volt 35 AH SLA Battery- Mighty Max Battery Brand Product

Mighty Max Battery

Based on 856 reviews Check latest price

Product description

ML35-12 - 12 VOLT 35 AH SLA BATTERY

  • ML35-12 SLA is a 12V 35AH Sealed Lead Acid (SLA) rechargeable maintenance free battery
  • Dimensions 7 68 inches x 5 16 inches x 7 13 inches Listing is for the Battery and Screws only No wire harness or mounting accessories included
  • Compatibility Deep Cycle AGM Solar Battery Replaces 33Ah 34Ah 36Ah Light Trolling Motor Sevylor Minn Kota Minn Kota Endura C2 Trolling Motor John Deere Tractor Riding Mower Yamaha Rhino Utility Vehicle Wilderness Tarpon 100 Kayak Trolling Motor Power Patrol SLA1155 Bat-Caddy X3R Golf Caddy Pride Mobility Jazzy Select Elite Power Chair GOAL ZERO YETI 400 SOLAR GENERATOR Doorking Power Inverter 1000 Sail 6-GFM-33 Toro Time Cutter SS5000 Mower GENERAC OD4575 Invacare Pronto M4
  • SLA / AGM spill proof battery has a characteristic of high discharge rate wide operating temperatures long service life and deep discharge recover
  • Rechargeable battery that can be mounted in any position resists shocks and vibration Long lasting high performance in high and low temperatures
  • Backed by a 30 day refund policy and full 1 year

User questions & answers

Question: How much does it weigh
Answer: It is 23.15 Lbs
Question: Seller what is the power output of the 35amp hr battery
Answer: 35 AH battery means that it can put out 1 amp for 35 hours. Power=current X voltage so the 12 v battery produces 12W for 35 hours. Resistance is measured in ohms, and current=voltage/resistance of load. So that battery connected across a 12ohm resistor puts out 1A= 12V/12ohms. If you give it less resistance it will yield greater current so that you can get higher powers, but only for a lesser time. And unfortunately the ralationship in time is a losing proposition. You don't get as many amp hours at a higher current. At 10 Amps you might be lucky to get 2.5 hours. I used my batteries in a gokart where I had 2 12V batteries in parallel, made 2 more sets like this, put the.m in series, which yielded 36v at 20 amps for about 2.5 hours, long enough to bore the grandkids, and fully recharge the batteries after they went down to 12V (from their fully charged 12.8 to 13V)
Question: Would 4 of these batteries do well hook in series 48volts if they were powering a 1000watt brushless hub motar for an ebike ?? So confused please help
Answer: I did the research before realizing your question is over two years old and you're probably long gone but at any rate. Hooking 4 of these batteries in series will produce 48 volts as you'd expect, to supply the 1000w you're requesting these batteries will have to deliver 20.85amp, at this delivery speed they will deplete to 9.6volts in 60 minutes which effectively makes them 20ah vs the rated 35ah at 3.5amp. So I'd say they are not a good fit for the task because using them in this manner will give you about 225 charge cycles vs 1250 cycles if they were under a more reasonable task such as 3 or 4 amp load.
Question: I bought this battery....can it be charged with a black and decker 12v 25 amp smart charger
Answer: Thank you for your inquiry. We recommend a 12v AGM charger with a charging output no higher than 10.5 amps. If you have any additional questions or need assistance, please do not hesitate in contacting us at 631-229-9361. We are happy to help!

Product features

ML35-12 - 12 Volt 35 AH SLA Battery - Mighty Max Battery Brand Product

NOCO HM327BKS Group 27 Snap-Top Battery Box For Marine, RV, Camper And Trailer Batteries

Based on 857 reviews Check latest price

Product description

The HM327BKS Group 27 Snap-Top Battery Box is a battery storage solution for Group 27 battery sizes, including 12V Marine, RV, Boat, and Trailer Batteries. It features locking tabs to fasten the cover securely to the battery case, reinforced plastic handles to prevent cracking during battery relocation, and allows adequate ventilation of battery acid vapors. This rugged battery box maintains its impact properties down to minus 20°F, as well as, resistant UV, oil, gas and other contaminants. Perfect installation in a car, boat, camper, motorhome, trailer, or caravan, as well as, generator equipment.



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  • Heavy-duty group 27 battery box for 12-volt marine, RV, boat, and trailer batteries.
  • Features patented locking tabs to fasten the lid to the base securely and reinforced handles to prevent cracking during relocation.
  • Built for rugged environments with an impact resistance down to minus 20-degrees Fahrenheit, and unaffected by acid, gas, oil, as well as, UV exposure.
  • Limits battery movement and protects against accidental shorting of battery terminals, as well as, collects battery acid and allows adequate ventilation.
  • Certified and tested to meet United States Coast guard (USCG) code of Federal regulations 183. 420, American boat and yacht Council (ABYC) E-10. 7 specifications, and frustration-free packaging.

User questions & answers

Question: Which style case do i need for this battery? https://www.amazon.com/gp/aw/d/b008d5yg3g/ref=ox_sc_act_image_2?smid=a3unyf78mgmxy1&psc
Answer: I have a similar 35AH battery and use this Group 27 box. Good fit.
Question: Does this come with a strap
Answer: The cover snaps on, no strap included. You get to customize that for your situation. It’s a great box.
Question: is it waterproof
Answer: I wouldn't say it is 100% waterproof. It doesn't have an inside gasket to seal it up. With that said, the top does latch in and you can pull the straps pretty tight. I think as long as you don't submerge it you should be fine.
Question: Need to know the width at the bottom. Only have 8" in bracket area
Answer: If you're looking at the Amazon page, it shows several diagrams of the box with dimensions. It clearly shows that it will fit your location. I also have 8" rails and my smaller group 24 battery (that I've upgraded) fits. Ignore the people who said it's 9" wide. That may suggest it won't fit. If you look at the product drawings, it clearly WILL fit. The overall case width is shown as 10", but that's the max width of the top. The bottom is shown as 7.4" and gradually slopes outward as you move up the case. It is designed to fit between 8" rails, which appears to be an RV/trailer standard.

Product features

Rugged.

Every single NOCO battery box has been designed to withstand conditions in even the most extreme environments; impact resistant down to -20 degrees fahrenheit, withstands acids, gasses, oils and other contaminants.

UV resistant.

Engineered to last, NOCO battery boxes consist of thermoplastic modified by UV stabilizers, to create a highly UV resistant final product. Leave the battery box outside for years without worry of the box cracking or fading.

Made In USA.

Every battery box NOCO sells is designed, engineered, and produced in the USA.

Keep your battery safe.

Each battery box is tested and certified in order to make sure the end result is the highest quality product possible. NOCO’s battery boxes meet the United States Coast Guard’s Code of Federal Regulations and the American Boat and Yacht Council’s requirements.

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