14 best double battery charger

Product description

Conveniently charges 4 AA or AAA NiMH rechargeable batteries at the same time.3-5 hour charge time with auto shutoff to prevent overcharging and battery damage. Manufactured in China .The charger is equipped with audio and visual alerts. A red light means that charging has started, and you will hear an audible beep when charging begins. A yellow light appears when charging is 50 percent complete and charging is continuing. A green light means charging is complete, and the batteries are 100 percent full. You will hear an audible beep upon completion. If a bad battery is detected, a red X will illuminate, and the charger generates a repetitive audible beep upon detection. Audio and visual alerts:Red light - Charging has started; audible beep when charging begins. Yellow light - Charging is 50% complete and charging. Green light - Charge is complete and batteries are 100% full; audible beep upon completion. Bad Battery Detection Alert - If a bad battery is detected a red ‘x’ will illuminate; repetitive audible beep upon detection

• Charges 2 or 4 AA or AAA NiMH rechargeable batteries at once (4 AA batteries included)
• State of the art Charge Status Indicator system visually and audibly alerts on your batterie's charge levels
• Get a full charge in 4 hours with the rapid charging power of Recharge Pro (times may vary by NiMH battery)
• Auto safety shut off and overcharge protection features prevent damage from overcharging, helping to maximize battery life
• Built in, fold out plug design allows you to easily store the Pro Charger Battery Charger when not in use
• Compatible with all AAA and AA NiMH rechargeable batteries (Energizer Recharge batteries recomillimeterended)
• The world’s No.1 recharge brand (according to market survey data)
• Note: For any troubleshooting steps please refer product user manual in technical description

User questions & answers

Question:	Can you use the charger on the Energizer Power Plus NiMH AA Rechargeable Batteries rated at 2300 mAh
Answer:	You could if it actually worked. This charger stopped working within a month. I returned mine. Also you might want to consider more battery slots. 4 seems ok at first but now I got 1 with 8 slots and I think it's too small.
Question:	Does this charger only charge in pairs? Is it possible to charge 1 cell (at a time) with this charger
Answer:	I have owned this. The universal charger WILL charge batteries individually. There are 4 charging 'points' and you can choose to put one small battery (AA or AAA) in one point. Of course, you can also put two small batteries in each point to get the full 8-at-a-time figure. This also only applies to the small batteries. Cs and Ds are charged individually in each point, so their max is only 4 at a time total.
Question:	Can this charge aa and aaa at the same time
Answer:	Yes. AAA on one side and AA on the other. Not on the same side at the same time.
Question:	Can i use Energizer CHRPROWB4 Pro Charger with 240 volts 50 Hz AC input
Answer:	Hi Nikhil Singh, over at the Energizer web site they have some additional information. Look under batteries and then battery chargers. You can download the user manual for this model. The user manual clearly indicates that 240V 50Hz power is OK. The only problem you will have is the plug. The two-prong plug is designed for U.S. outlets. Of course, any plug adapter will solve that problem.Basically, the answer is yes.

Product features

Delta V Auto Shut-Off

The Pro Charger automatically shuts off the circuit when batteries are fully charged.

Overcharge Protection

Prevents against overcharging, which can shorten the life cycle of your rechargeable battery.

Maximizes Battery Life

These safety features make sure that you get the most of out of your battery performance.

Product description

There’s a simple way to save money and always have the power you need with the Energizer Recharge Value Charger. Conveniently constructed to charge 2 or 4 AA or AAA NiMH batteries, the Value Charger will have your batteries ready for use in as little as 5 hours. LED indicator lets you know when charging is complete, and the auto safety shutoff prevents damaging overcharging. Use with any of the Energizer Recharge batteries for the economical way to long-lasting power for all your electronic devices. Some usage tips from the user manual: • Ensure that batteries are inserted correctly to match polarity marks (+ and -) • When charging only 2 batteries, place both batteries in the left or right positions (see image in manual) • Charger is intended to be in a vertical or floor mount position • Never plug battery chargers into an extension cord • Best used with Energizer NiMH batteries

Manufacturer Contact Information

Contact Energizer for help with this product: visit www.energizer.com or call1-800-383-7323

• Note:Kindly verify user manual on charging issues. Item should be charged only on standard AC outlet
• Recharge Value Charger charges 2 or 4 AA/AAA NiMH rechargeable batteries. Automatic safety shut off when charge is complete
• Charges 4 AA batteries in only 5 to 11 hours, an economical way to keep all your devices powered and ready to go
• No more guesswork, charging status indicator alerts you when charging is complete and a bad battery is detected

User questions & answers

Question:	hey i want to know if the batteries on the charger come fully charge...since i connect them when i received my charger and the red light never change
Answer:	The Google preview of this item shows "AmazonBasics AA High-Capacity Rechargeable Batteries (8-Pack) ... Ni-MH Pre-Charged Rechargeable Batteries provide the extra power you need . .... of about 2500 mAh, but two of the batteries are only 54-70% of the rating." but you are correct. When I click the link, that spec is nowhere to be found. I use these for wireless microphones at my church. They work great. The nubs are slightly short so I do have to seat them in really good but they are excellent.
Question:	What does the pulsing red light 'bad battery" mean? Just a discharged or truly bad battery that won't accept / hold a charge
Answer:	To clarify, there are three different versions of AmazonBasic rechargeable NiMH batteries:- The original AmazonBasics batteries came in black wrappers. They are made in China and have the capacity rating of 2000mAh. They are NOT as good as Sanyo eneloop batteries.ASIN:B0030T1NEA AmazonBasics AA NiMH Pre-Charged Rechargeable Batteries- The second version of AmazonBasics batteries came in white wrappers. They are made in Japan and also have the capacity rating of 2000mAh. They are (according to me) rebranded 2nd-gen Sanyo eneloop, so you can expect at least 1500 cycles lifespan.ASIN:B00CWNMV4G AmazonBasics Pre-Charged Rechargeable Batteries- The third version is also black but called 'high-capacity'. They are (according to me) rebranded Sanyo XX. They are rated 2400mAh, but actual capacity is around 2550mAh, just like Sanyo XX. The rated lifespan of the XX is only 500 cycles.ASIN:B00HZV9TGS AmazonBasics High-Capacity Pre-Charged Rechargeable Batteries
Question:	Has anyone else had a problem with these? I had them plugged in for over 12 hours and the light never turned green
Answer:	I purchased the white label 1900mAh batteries and black labeled 2000mAh batteries several years ago. Contrary to other's comments, the white batteries are still charging up to full capacity, and the black batteries have all lost significant capacity. White labels say "made in japan" and black labels "made in china". Mfg Date of black batteries is AUG2014, and white batteries have "201409" imprinted. These have all been charged in the same MH-C9000 WizardOne from the beginning.
Question:	does it matter which slot tbe batteries are in? my old chsrger had to use the middle slots if only charging 2 for instance
Answer:	1a would be .5 C with these 2000mah cells.. I checked the IR of these cells and with my Turbo Matched 30 from Competition Electronics (these are a 1500 dollar cell matching system that we professional RC on road and off road car and truck guys used to match cells. Very important and HIGH TECH for the time system. Was made for Nicd cells but worked equally well on Nimh cells when they came out) and matched them to get well matched pairs for practice cells for Mod Mini Z cars and boats.. I used Enloop cells for race days and practice with these.. these cells give a solid 2050 to 2100mah handle, will give me long run times and with cells matched with a 6 amp discharge will give me a avg voltage of about 1.02v per cell over 25 minutes, my well massaged Eneloop 2kMah cells i match at 8.5 amps they give me a avg May of 1980 to 2020mah and will hold a avg Voltage of 1.06V per cell at 8.5 amp load over 25 minutes. Point is these cells are a very good value, even in high load usage these cells stand up a lot better then similarly priced Nimhs from other brands.. these cells offer 85% the performance of Eneloop at less then half the cost.. the cells hold up well until about 200 cycles then they deff start to have noticablly lower avg voltage over time at the same discharge curve.. but that's in higher load apps then most people will be using them for.. I charge these cells at .75C or 1.5 amps, at 1.5 amps the cells are slightly warm off the charger and that's how I want them, slightly warm when ready to run as the IR will be lower with a warm cell over a room temp one giving me less voltage sag as the cell warms up under load... These cells will be slightly above ambient temp of charged at .5C or 1 amp, the warmth will start to happen once the cell reaches about 90^% full charge and progressively get warmer until peak charge.. at .75C charge or 1.5 amps you will notice the cells are a fair bit warmer then ambient temp and this has it's use for high load apps like my Mini Z's and some times I'll even charge them at 1C or 2 amps.. that will make for a fairly hot pack BUT will give me the highest voltage under load for the first 25 to 30% of the charge... but will ABSOLUTELY shorten the cells life and I would not recommend doing that UNLESS you know what you are doing to the cell and understand the cells life will be cut by good bit.. meaning if I get 200 really good cycles on a set of cells when charging them at .75C or 1.5 amps, moving to a 1C or 2 amp charge will know it's really good cycles life down to 100 to 125... but you will have less voltage sag/higher voltage under load taking the very warm cells off the charger and straight to using them then if you was to charge them at a lower rate and have cooler cells... Charge at 1 amp and you will be happy with these cells .5C and under will give you the longest cell life for sure..

Product features

Delta V Auto Shut-Off

This Value Charger automatically shuts off the circuit when batteries are fully charged.

Overcharge Protection

Prevents overcharging, which shortens the life cycle of your rechargeable battery.

Maximizes Battery Life

These worry-free safety features make sure that you get the most of out of your battery performance.

Product description

The Duracell Ion Speed 1000 NiMH Battery Charger will recharge your batteries in 4-8 hours* with 1000 mW** of charging power. It recharges any AA and AAA NiMH battery from any brand. You can recharge 2 or 4 batteries at a time and, with an LED Charge Status Indicator, you’ll know when charging is complete. It also features an Auto Shutoff so you won’t use any unnecessary electricity. Plus, the Duracell Rechargeable Pre-Charged NiMH Batteries are guaranteed to last 10 years.*** *To approx. 90% of full charge when using 1300mAh up to 2500mAh 2xAA NiMH Batteries (included). **Based on charging AA batteries. ***Or 400 recharges, whichever comes first.

• Ion Speed Battery Charger: The Duracell Ion Speed 1000 NiMH Battery Charger will recharge your batteries in 4-8 hours with 1000 mW of charging power
• Auto Shutoff: Duracell Ion Speed Battery Charger has an Auto Shutoff feature, so you won’t use any unnecessary electricity
• Multi-battery Charge Power: Recharge 2 or 4 batteries at a single time with the Duracell Ion Speed Battery Charger
• Includes 4 AA Batteries: Battery Charger comes with 4 Double A Duracell Rechargeable batteries

User questions & answers

Question:	Can i buy the batteries without the charger
Answer:	Yes
Question:	How long does 4 aa take to carge
Answer:	Dear Michael B. I ordered the Durcell 15 minute charger not receied it. I was shipped the regular Duracell charger. The regular charger, after the initial charge of six (6) hours, charges four (4) AA batteies in 2 hours. I bought the batteries for wireless microphones for church. The batteries last a very long time.I contacted the seller of the Duracell 15 minute charger and he blamed Amazon for posting the wrong picture and giving an incorrect description. I do not know if this has been corrected. I would contact Amazon to ensure you are purchasing the item you wantThe reviews of the 15 minute Duracell charger are NOT good! There were posted, by those who recieved it, that the rapid charger damages the batteries.Good Luck
Question:	I am replacing 1" long batteries. how long are these batteries
Answer:	I replaced other nimh batteries in my cordless phone headset without any problems. I do no remember what brands they were, however, they were Duracell. I do my expect that you would no problems with these batteries.
Question:	Are these 1.2v or 1.5v batteries? regular alkaline aas are 1.5v but i've heard some (all?) rechargeables are 1.2v, these don't say in the description
Answer:	1.2v

Product features

Duracell Ion Speed 4000 NiMH Battery Charger

Duracell Rechargeable Pre-Charged NiMH batteries let you charge hundreds of times, helping you save money. With its Long-Life Ion Core technology you get amazing power in every battery. Plus, they come pre-charged and ready to use. They last up to 10 years* in storage and they will hold a charge for up to 1 year when not in use. These powerful NiMH batteries work in any NiMH charger and you can recharge them up to 400 times.

Versatile Charging Power

Duracell Rechargeable batteries recharge up to 400 times to help save you money. They come pre-charged to help assure your rechargeable batteries will be ready to use when you open the package.

Dependable Duracell for Any Device

Duracell batteries are to protect your device from damaging leaks.*** Try Duracell CopperTop, Quantum, Rechargeable, Chargers, Hearing Aid and Coin Button batteries.

***Should your device be damaged due to a battery defect, when used as directed. See our website for details.

Lasts Up to 10 Years in Storage

You can recharge Duracell Rechargeable batteries hundreds of times and save money because they last up to 10 years in storage.

Product description

RAYOVAC Rechargeable Battery Chargers are compact and ideal for keeping your rechargeable batteries ready to go. This charger is compatible with AA and AAA batteries, and can recharge them fully in just eight hours, giving you constant power for all your digital devices.

• Comes with 2 Rayovac AA and 2 AAA Batteries
• Recommended for Digital Devices
• Charges Rayovac Batteries in 8 Hours
• Recharges Rayovac Batteries up to 1500X
• Overcharge Protection

User questions & answers

Question:	Are they R03compatable
Answer:	Yes, R03 is another way of giving the size for AAA cells. Our LD724-4OP GENE are rechargeable NIMH AAA cells.
Question:	it's 1.2 volt or 1.5 volts
Answer:	Unfortunately, they are only 1.2, which means some devices may not operate correctly on them. Especially if they are required to be placed in series. Four batteries in series only deliver 4.8 Volts instead of 6 Volts
Question:	Where are these batteries manufactured
Answer:	When I did a search under Made in USA they were listed. But when I just received them - MADE IN CHINA!!!!
Question:	The ad is confusing. in "about the product" it says recharge 500 times. on the package picture it says "recharge up to 1500x." which is it
Answer:	The product data is mixed - it's confusing. Should be: 500 for recharge plus, 1500 for recharge.

Product features

Why Rayovac?

We've spent over 110 years thinking about batteries so you can think about them less. That’s why when you purchase RAYOVAC, you’re getting a battery that’s backed by our three key promises:

• A Powerful Product
• A Fair Amount
• An American Commitment

Product description

Conveniently charge two GoPro batteries simultaneously with this Dual Battery Charger and spare 1220mAh lithium‑ion battery for your GoPro. It charges via most USB ports. For up to 38% faster charging, use it with the optional GoPro Supercharger (International Dual‑Port Charger). Dual LED indicator lights display the charging status.

• Conveniently charges two GoPro batteries simultaneously
• Charges via USB port for faster charging, or via the optional GoPro Supercharger (International Dual‑Port Charger)
• Dual LED lights display charging status of both batteries
• Includes a spare 1220mAh lithium‑ion rechargeable battery
• Allows you to charge your spare batteries while you use your camera

User questions & answers

Question:	how long does it take to charge the battery to full capacity
Answer:	Total charging time can vary depending on your battery's need. If fully drained, it can take 4-5 hours. In my experiences, it's 2-3 hours when my batteries are down to 20% - 30%.
Question:	Is this the battery that has the new discharge rate for 4K recording
Answer:	Yes, this is the new battery. The blue strip indicates it is the newest version of the battery, the one for HERO8 Black.
Question:	Is it like a powerbank too? Or it doesn't work when it's not plugged into a wall
Answer:	No it is strictly a charge that has to be plugged in to work
Question:	Can you charge the new (blue strip) battery in the old dual battery charger
Answer:	The Dual Battery Charger has not changed and will work with both types of batteries(black/ blue strip). See https://community.gopro.com/t5/en/HERO8-Black-Battery-Compatibility/ta-p/398667 for reference.

Product description

Charge your max batteries using a USB port. The max dual battery charger automatically prioritizes which battery gets charged first, so you’ll get a fully charged battery as quickly as possible. Includes a spare battery.

• Conveniently charges two max batteries using a USB port
• Optimizes charging so you’ll get a fully charged battery as quickly as possible
• Dual LED lights display charging status of both batteries

User questions & answers

Question:	Are gopro max and gopro fusion batteries the same size
Answer:	from the Holosun FAQ: "The angled objective lens is part of the design. All red dot sights have to have a bit of an angle on the objective to allow for the light from the LED emitter to bounce off the inside surface and be reflected to the shooter. The Holosun design is a bit steeper than many and this allows for the emitter to have an extremely low profile so that it does not intrude into the inside of the tube and obstruct your view. The angle also reduces reflection to your target."
Question:	Would the charger work with a usb adapter plugged to a 220v italian receptacle, or would i need a transformer
Answer:	Yes, you can turn it off. You can run the circle and dot, the dot only, and turn it off completely. Auto On/Off is the best and it works very well. Turns off after about 10 min of being still, turns on instantly with the slightness movement.
Question:	is that battery good for gopro
Answer:	No .It's a 1/3 Co witnessed. You will be able to see your sights through the bottom 3rd of the red dot.
Question:	how long does it take to charge batteries
Answer:	solar vision red dot no motion sensor, it will auto adjust by monitor photo diode. it works with KSG.

Product description

This Wasabi Power battery and charger kit includes 2 batteries for the Canon NB-13L and one US charger with a 12V car adapter and European adapter. All items meet or exceed OEM standards and come with a 3-year manufacturer warranty. Need a Canon G7X battery? A Wasabi Power replacement for the Cannon camera battery NB-13L is the perfect fit.

Compatibility:

PowerShot G1 X Mark III 

PowerShot G5 X 

PowerShot G5 X Mark II

PowerShot G7 X 

PowerShot G7 X Mark II 

PowerShot G7 X Mark III (Firmware note: may not display remaining battery power)

PowerShot G9 X 

PowerShot G9 X Mark II 

PowerShot SX620 HS 

PowerShot SX720 HS 

PowerShot SX730 HS 

PowerShot SX740 HS

• INCLUDES 2 batteries and 1 dual USB charger for the Canon NB-13L so you always have the power you need
• BATTERIES include premium grade-A cells rated at 3.6V, 1250mAh for longer run-time and battery life; Batteries work with the Canon original charger
• CHARGER powers two batteries simultaneously from any USB source; Input 5V, 2000mA (recommended); Outputs 800mA (x2); Charger works with Canon original batteries
• COMPATIBLE with many popular Canon models (see description for more models)
• WARRANTY - All items include a 3-year manufacturer warranty from Wasabi Power

User questions & answers

Question:	Voltage input 110-220v
Answer:	110 in the USA.

Product features

Stay Protected

Wasabi Power products work with Canon original charger & batteries. All products include over-charge & short-circuit protection.

Longer Battery Life

Works great as a spare or as a replacement. Manufactured with premium cells for longer battery life with no memory effect.

Versatile Charging

Wasabi Power batteries can be charged with the Canon charger or in the camera and can be charged from any power source (USB, laptop, car/wall adapter, portable power bank).

Product description

The Energizer Recharge Basic Charger is your simple solution for battery charging. Charge 2 or 4 AA/AAA NiMH batteries and you’ll have the power you need to operate your devices. Included are 2 rechargeable AA batteries, ready to use right out of the pack and can be charges 100s of time for reliable long-lasting performance.

• Recharge Basic Charger charges 2 or 4 AA/AAA NiMH rechargeable batteries
• Includes 2 AA Energizer NiMH batteries with 1300 mAh charge capacity, pre-charged and ready to use
• Approximate charge time of 7-13 hours for 2 or 4 batteries
• Compact wall outlet charger with folding plug for easy storage
• Charges batteries 100s of times for an economical and responsible way to keep all your electronic devices powered and ready to go

User questions & answers

Question:	Can i charge 2 aa and 2 aaa at the same time
Answer:	Thank you for submitting your question! It's not recommended to use AAs and AAAs together due to difference in mAh and the circuits. For any further information please reach out to us on https://contact.energizer.com/ or call us at 1-800-383-7323 to assist you better.
Question:	Can it recharge pairs of 3.7v Li-ion rechargeable AA batteries
Answer:	These batteries are designed to charge NiMH batteries.
Question:	Cuantas baterías trae el paquete
Answer:	Cuatro
Question:	Ok, i have had this for about 7 months and i want to know something. why does it blink endlessly with a rechargeable aa battery in it
Answer:	It will only charge batteries in pairs. 2 AA batteries or 2 AAA batteries per side. Up to 4 total batteries can be recharged at once, in pairs of AAA or AA batteries. Then, the led will blink while the batteries are charging then solid when they are done.

Product description

The Powerex mh-c980 Turbo charger-analyzer charges up to 8 AA or AAA nickel-metal hydride batteries in approximately 1 hour. This charger is the best combination of an 8-Cell charger with battery health analyzing features. It has a special one-touch battery health Analyzer with actual capacity readout to provide the most accurate data. The turbo charge mode allows you to charge your batteries twice as fast while the default mode will maximize battery life. With the thermal management system, your batteries will stay cool during charge. For older batteries, you can use the deep battery conditioning system to revitalize them. The large backlit LCD display allows you to take quick glance of the charging status.

• Eight independent charging circuits for flexible charging
• One touch battery health analyzer with capacity readout to provide accurate data
• Turbo charge mode (2000mA) when you need batteries charged fast
• Thermal management system to keep batteries cool during charge
• Deep battery conditioning system to revitalize old batteries
• Large backlit LCD display to allow quick glance

User questions & answers

Question:	will it charge 1.5 volt batteries to 1.5 volts
Answer:	This charger is only for Ni-MH and Nicad batteries. Both of those have a nominal 1.2 volts rating. Alkaline and carbon-zinc batteries are the 1.5 volt nominal rating batteries. This charger will not charge them. But do not worry, those 1.2 volt Ni-MH batteries will work great in almost all of your devices.
Question:	Does this new model, with updated software, do a better job of refreshing older batteries than the older MH-C
Answer:	This model is far better. Just a one button selection for a whole rack of batteries. Refreshed batteries last noticeably longer.
Question:	Can you leave batteries on the charger after the charge is complete for extended times
Answer:	The charger changes to maintenance charge (trickle charge) when charge or refresh is complete. Cells can be left in the charger after charge or refresh completion however leaving cells in for extended periods is not recommended. ie more than a day or two.
Question:	What exactly does the conditioning mode do? how does it compare to the refresh and analyze mode of the mh-c
Answer:	On the C980 the refresh mode is similar to the Analyze mode of the C9000. C980 refresh mode charges the cells, then discharges the cells while measuring capacity, then completely charges the cells. At the end of program the tested discharged capacity for each cell is displayed. You can use the buttons on each side to toggle through the 8 slot positions to display results of refresh/capacity test.

Product features

Deep Battery Conditioning System

One touch Battery Health Analyzer with capacity readout to provide accurate data.

Thermal Management System

Thermal Management System to keep batteries cool during charge.

Turbo Charge mode

Turbo charge mode (2000mA) when you need batteries charged fast.

What's In the Box

• MH-C980 Turbo Charger Analyzer
• Compact 100-240V worldwide Power Adapter
• Reusable battery holder/storage case for 8 AA or 10 AAA batteries
• User Manual (not pictured)

Product description

The Duracell Ion Speed 4000 NiMH Battery Charger offers amazingly fast charge times of 1-2.5 hours* with 4000 mW** of charging power. It recharges any rechargeable AA and AAA NiMH battery from any brand. You can recharge 2 or 4 batteries at a time and, with the LED Charge Status Indicator, you’ll know when charging is complete. It also features an Auto Shutoff so you won’t use any unnecessary electricity. It even has a bad-battery indicator along with 9 smart safety features. Plus, the Duracell Rechargeable Pre-Charged NiMH batteries are guaranteed to last 10 years***.

*To approx. 85% of full charge when using 1300mAh up to 2500mAh 2xAA NiMH Batteries (included). **Based on charging AA batteries.***Or 400 recharges, whichever comes first.

• Charges batteries in 1 to 2.5 Hours with 4000 mW charge power (To approx. 90 percent of full charge when using 1300mAh up to 2400mAh (included) 2xAA NiMH batteries. Based on charging AA batteries.)
• It recharges any rechargeable AA and AAA NiMH batteries from any brand
• LED Charge Status Indicator shows when charging is complete and Auto Shutoff when batteries are charged
• This battery charger works with all rechargeable AA and AAA NiMH batteries
• The Duracell Ion Speed 4000 Battery Charger charges 2 or 4 batteries at a time

User questions & answers

Question:	can you charge an aa battery 2500mAh with an aa battery 2000mAh
Answer:	Yes. It will just take about 25% longer to charge the 2500mAh battery. Think of it like filling a bathtub with the faucets on full. The bigger the bathtub, the longer it takes
Question:	Can you charge 4-aa batteries or is it just 2-aa and 2-aaa batteries at the same time
Answer:	I can charge 4-AA at the same time.
Question:	how many batteries are there in this pack
Answer:	4 Total - Comes with 2 AA and 2 AAA premium Duracell Rechargeable Pre-Charged batteries
Question:	Can you place 4aaa batteries instead of 2 of each
Answer:	yes, that's the way it was designed.

Product features

Duracell Ion Speed 4000 NiMH Battery Charger

Duracell Rechargeable Pre-Charged NiMH batteries let you charge hundreds of times, helping you save money. With its Long-Life Ion Core technology you get amazing power in every battery. Plus, they come pre-charged and ready to use. They last up to 10 years* in storage and they will hold a charge for up to 1 year when not in use. These powerful NiMH batteries work in any NiMH charger and you can recharge them up to 400 times.

Versatile Charging Power

Duracell Rechargeable batteries recharge up to 400 times to help save you money. They come pre-charged to help assure your rechargeable batteries will be ready to use when you open the package.

Dependable Duracell for Any Device

Duracell batteries are to protect your device from damaging leaks.*** Try Duracell CopperTop, Quantum, Rechargeable, Chargers, Hearing Aid and Coin Button batteries.

***Should your device be damaged due to a battery defect, when used as directed. See our website for details.

Lasts Up to 10 Years in Storage

You can recharge Duracell Rechargeable batteries hundreds of times and save money because they last up to 10 years in storage.

Product description

Get Wasabi Power for your Insta360 ONE X2. Featuring 1700mAh, premium grade-A cells, and a 3-year Wasabi Power warranty, this battery works great as a spare or replacement. The Wasabi Power battery is completely compatible with all original equipment including the charger and camera. Includes 2 batteries and dual USB charger with micro USB and USB Type-C Ports. Need Insta360 accessories? Buy a ONEX2 battery and ONEX2 charger Wasabi Power product. They're a great replacement!

Compatible with the following models:

Insta360 ONE X2

• COMPATIBILITY - Works with these popular Insta360 cameras that use ONE X2 batteries: Insta360 ONE X2
• BATTERY & CHARGER SPECS - Premium Grade-A cells rated at 3.85V, 1700mAh for longer run-time and battery life; Charges two batteries simultaneously from any USB source; Input 5V, 2000mA (recommended); Outputs 600mA (x2); Batteries and charger work with Insta360 original batteries and Insta360 original charger
• MULTIPLE CHARGING OPTIONS & OVERCHARGE PROTECTION - Recharge your batteries in a multitude of ways including your wall, car, or powerbank. Charger is protected with overcharge protection to increase safety
• INCLUDES - 2 batteries and 1 dual USB charger for the Insta360 ONE X2 so you always have the power you need
• USA WARRANTY - All items include a 3-year manufacturer warranty from Wasabi Power and 100% US based customer support in Pomona, California

Product description

Conveniently charges two GoPro batteries simultaneously. Includes a spare battery.

• Conveniently charges 2 GoPro batteries simultaneously
• Optimizes charging so you’ll get a fully charged battery as quickly as possible
• Charges via USB port; for faster charging, use with the optional GoPro Supercharger (International Dual‑Port Charger)
• Dual LED lights display charging status of both batteries
• Includes a spare 1720mAh lithium‑ion rechargeable battery

User questions & answers

Question:	How long does it take to charge the battery fully
Answer:	It takes about 2-3 hours to charge a fully-drained battery.
Question:	What USB cable does this use
Answer:	The same cable as the GoPro camera, usb-c to usb.
Question:	Is there an option to order a dual charger without the additional battery
Answer:	There is no option to purchase just the charge. The battery is part of the standard package.
Question:	Soooo does it come with two batteries or one
Answer:	The Dual Battery Charger comes with one (1) rechargeable battery.

• Multi-Function: This charger cannot charge 1.5V batteries. Independent charging slot. It can random charge up to 4 batteries of 1.2V AA/AAA/C/D size, or 2 batteries of 9V Ni-MH/Ni-CD rechargeable batteries at the same time. One battery charged at one time is workable
• LCD Display: You can observe the charging process of the batteries directly & clearly through the LCD and the LED is only for 9V li-ion Battery, please note the LED will be light all the time when charging Ni-MH 9V battery （Whether the batteries are fully charged or not）and LED will be turn off when charge 9V li-ionbattery are finished. The charging time depend on the capacity of the battery.
• Super Rapid Charging Time: Charging the battery AA/AAA/C/D with the current 1A, making charging 5 times faster than the normal one. Less than 5 hours to fully charged the AA/AAA/C/D batteries, and less than 12 hours to fully charged the 9V batteries
• Smart Switch & Clamshell Cover Design: Press the discharge button to discharge the battery, and the charger will restore to charging mode when discharging is completed; Special clamshell cover design can well protect children and the old from danger, also prevent the interference from the outside environment when charging
• Over Temperature Protection: This battery charger will automatically power off when the battery's or charger's temperature exceeds 60℃. No need to guard and can ensure security anytime.

User questions & answers

Question:	I did not receive an instruction sheet with the charger, but the label on the bottom says: "the lcd will be on and show its background color for 2 sec
Answer:
Question:	What batteries do i need to buy to use with this device? will amazon basics work
Answer:
Question:	Can you use different brands of rechargeable batteries for this
Answer:
Question:	can i charge just one battrie
Answer:

Product features

Bonai LCD Universal Battery Charger

Notice：

This charger cannot charge 1.5V Lithium Batteries and 3.7v Lithium Batteries.

You can observe the charging process of the batteries directly & clearly through the LCD and the LED is only for 9V li-ion Battery, please note the LED will be light all the time when charging Ni-MH 9V battery （Whether the batteries are fully charged or not）and LED will be turn off when charge 9V li-ionbattery are finished. The charging time depend on the capacity of the battery.

Compatible Models:

Independent charging slot, can charge different compatible batteries freely.

For Ni-MH Ni-CD rechargeable batteries: 1/2/3/4 AA, AAA, C, D and 1/2 9V batteries.

Environment Conditions:

Using Environment: Temperature: 0-40℃; Humidity:≤85%

Storage Environment: Temperature: -10-40℃; Humidity:≤60%

Work Temperature:

Surface temperature of charger≤60℃

Surface temperature of battery≤45℃

Product description

• Individually charges Eneloop and Eneloop Pro Ni-MH rechargeable AA or AAA batteries
• 4 individual LED charge indicator lights
• Retractable AC plug. Fast efficient charging
• Accepts input voltages ranging from 100 to 240VAC, 50/60Hz
• Includes 4 AA new Eneloop Pro 2550mAh Type, 2450mAh min, Ni-MH high capacity rechargeable battery

User questions & answers

Question:	Can the charger be used to charge other brands of Ni-MH batteries. A little tired of each brand claiming only their charger will do it properly
Answer:	Yes, a Ni-MH battery is a Ni-MH battery. They say that their charger can only charge their batteries because of legal liability reasons, and so you'll but more of their batteries after you buy the charger ;) Most chargers can detect when it's fully charged because the voltage drops a little when it is, as in 5 mv to 10 mv. The percentage of how much power a battery has is from the voltage. e.g. the peak voltage of most high capacity Ni-MH batteries is between 1.45 to 1.55 volts. I know it says it's nominally 1.2 volts but I think that's when it reaches 0% just like a lead acid batteries in vehicles, they're fully charged at 13.2 volts even though they're called 12 volt batteries. I don't understand the world! I mean a smaller number for gauge means it's thicker?! That doesn't make any sense at all! D: I like turtles.
Question:	Are there any differences between this charger and the NC-MQN06U not in terms of form factor but in terms of functionality and charging
Answer:	The new BQ-CC17 charges each cell independently. The old MQN06 charges in pairs only. Other than that, they have exactly the same charging current (hence charging time).
Question:	Should you remove the batteries from the charger once they're charged or can you leave them on
Answer:	Ditto the 11/30/2014 comment, no need to leave them on once they are charged; I usually remove them once I see they're charged.
Question:	If I use these for photography flashes -- why would I use the pro version instead of the regular ones? I'm confused as to how they are better
Answer:	The Eneloop Pro have a higher capacity than the standard ones (roughly 2,450 vs. 1900, about 29% greater); all other things being equal you will get more flashes per battery change. Note that different generations have different performance ratings. In some cases the Pro are rated for fewer charge cycles, however; the Lite versions when available have even less capacity per charge, but more charge cycles.