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phoinix | Staff 15.6K Views
Oct 13, 2026 5:40 AM

16-Ct Panasonic eneloop AAA 2100 Cycle Pre-Charged Rechargeable Batteries

$29

$46

36% off
Amazon
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Deal Details
Amazon has 16-Count Panasonic eneloop AAA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries (BK-4MCCA16FA) for $$28.99. Shipping is free with Prime or orders $35+.

Thanks to Deal Hunter phoinix for posting this deal.
  • Note: Item is also available for the same price via Subscribe & Save. Manage subscriptions anytime after your order ships. Add filler/deals & save up to 15% w/ 5+ monthly items.
Product Details:
  • Recharge eneloop AAA batteries up to 2,100 times, reducing waste and saving money.
  • Delivers 850mAh typical (800mAh minimum) for reliable performance in a wide range of devices.
  • Pre-charged at the factory using solar energy and ready to use right out of the package.
  • Maintains up to 70% of its charge after 10 years of storage (when not in use).
  • Works in temperatures as low as -4°F (-20°C).
  • Made in Japan and packaged in the United States.
  • Includes 16 eneloop AAA rechargeable batteries.

Editor's Notes

Written by RevOne | Staff

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 16-Count Panasonic eneloop AAA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries (BK-4MCCA16FA) for $$28.99. Shipping is free with Prime or orders $35+.

Thanks to Deal Hunter phoinix for posting this deal.
  • Note: Item is also available for the same price via Subscribe & Save. Manage subscriptions anytime after your order ships. Add filler/deals & save up to 15% w/ 5+ monthly items.
Product Details:
  • Recharge eneloop AAA batteries up to 2,100 times, reducing waste and saving money.
  • Delivers 850mAh typical (800mAh minimum) for reliable performance in a wide range of devices.
  • Pre-charged at the factory using solar energy and ready to use right out of the package.
  • Maintains up to 70% of its charge after 10 years of storage (when not in use).
  • Works in temperatures as low as -4°F (-20°C).
  • Made in Japan and packaged in the United States.
  • Includes 16 eneloop AAA rechargeable batteries.

Editor's Notes

Written by RevOne | Staff

Original Post

Written by phoinix | Staff

Community Voting

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Top Comments

olegk
285Comments
109Reputation
Just keep in mind, these are 1.2V, not the standard 1.5V. Will work in some devices, will not in others.
Go to Comment
BlueMallard431
165Comments
26Reputation
Sadly there is a very good chance that you got counterfeits. I've been burned twice buying from Amazon.
Go to Comment
BlueMeerkat6618
52Comments
38Reputation
Got mistakenly excited thinking they were AA...
Lookig for a deal on those.
Go to Comment

Community Reviews

Panasonic eneloop AAA batteries are valued as long lasting rechargeable cells that work well in most AA and AAA devices, with the main appeal being dependable everyday use and a strong cycle life. The packaging says Made in Japan, and the standard line is favored over the Pro line for its much higher cycle count, while the Pro version is described as higher capacity but shorter lived. The main cautions are the 1.2 volt output versus 1.5 volt alkalines, possible low battery indicator quirks, and the risk of counterfeit stock on Amazon. A solid rechargeable option if you want reliable AAA power without disposable batteries.

  • Households using AAA devices that accept rechargeable cells, because these hold a steady 1.2V through most of discharge and work in most battery bays.

    MellowDesk4436MellowDesk4436VioletFruit436

  • Frequent battery swappers who want long service life, because the standard line is rated for about 2000 charge cycles.

    jpudlogamingdroidleeroy00

  • People replacing disposable AAA batteries in low-drain gear, because these recharge well and avoid the lower-voltage performance problems some devices have.

    jpudloeeagleMellowDesk4436

  • Shoppers wanting Japanese-made rechargeable AAA cells, because the packaging says Made in Japan and code checks can identify the origin.

    C182pilotMisterboy

  • Devices with battery-level indicators or low-battery warnings, because rechargeable cells can make those warnings read incorrectly.

    MellowDesk4436MellowDesk4436

  • Buyers who need 1.5V output from AAA cells, because these are 1.2V rechargeable batteries instead of standard alkaline cells.

    olegkleeroy00

  • People who need maximum capacity from a rechargeable AAA, because the Pro line has higher capacity but the standard line trades that for longer cycle life.

    gamingdroidjpudlo

  • Gear with a very tight positive terminal bay, because the slightly larger nub can fail to make electrical contact.

    VioletFruit436

Common Questions (4)

AI-generated summary based on comments from the community. Updated ago

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28 Comments

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Oct 16, 2026 4:09 AM
273 Comments
Joined Oct 2007
cdhammaOct 16, 2026 4:09 AM
273 Comments
Quote from davilot1710 View quoted comment :
Make sure its sold by Amazon and not a 3rd party. Fake eneloops are everywhere and the listing flips sellers sometimes.
Everything "fulfilled by Amazon" gets piled into one bin there, so that's another way you can get a counterfeit item is because it was supplied by a 3rd party seller but loaded into the same bin in their warehouse. I buy mine from Home Depot or B&H Photo.
1
Oct 16, 2026 5:16 AM
601 Comments
Joined Jul 2018
puncturepremiumOct 16, 2026 5:16 AM
601 Comments
Quote from noipv4 View quoted comment :
several of my eneloop pro aaa no longer charge using the official eneloop charger. i have hardly put them through 50 or so cycles.
Do you have eneloop fast or slow charger? I have both, found out the pros need slow charge over time. Fast charge does what you said for my 5 yr old (rarely used) pro aaa
Oct 16, 2026 6:37 AM
38 Comments
Joined Oct 2019
MellowDesk4436Oct 16, 2026 6:37 AM
38 Comments
Quote from olegk View quoted comment :
Just keep in mind, these are 1.2V, not the standard 1.5V. Will work in some devices, will not in others.
Thats not really how that works. Non rechargeable alkaline cells have an initial voltage of around 1.5 volts, goes down as you use it, and depending on the use case and brand are typically "dead" at somewhere between 0.9 and 1.1 volts.

Rechargeable Nimh cells are actually about 1.3 volts fully charged, are near 1.2 volts most of their discharge cycle, and then drop to about 1 volt when discharged.

They work just fine in anything that calls for aa/aaa. The only issue you might have is battery life indicators or low battery warnings not working properly.
1
Oct 16, 2026 6:41 AM
38 Comments
Joined Oct 2019
MellowDesk4436Oct 16, 2026 6:41 AM
38 Comments
Quote from leeroy00 View quoted comment :
nimh batteries will have 1.2v vs alkaline at 1.5v. lithium ion can give 1.5v, but it has it own issues like 1000 charge cyclese vs nimh 2000 charge cycles
These work for anything that calls for aa/aaa batteries. The 1.5 for disposable cells is their initial voltage which goes down as you use it. Nimh tends to stay near 1.2 volts most of the discharge cycle. The only issue you might have is battery level indicators or low battery level warnings not working properly.
Oct 16, 2026 9:48 PM
264 Comments
Joined Nov 2018
TeleganOct 16, 2026 9:48 PM
264 Comments
For once, these actually seem like a pretty good deal. I used to think $1.83-$1.88/AAA battery for these was a good deal.
Oct 16, 2026 11:48 PM
1.3K Comments
Joined Apr 2008
sr27Oct 16, 2026 11:48 PM
1.3K Comments
Quote from MellowDesk4436 View quoted comment :
Thats not really how that works. Non rechargeable alkaline cells have an initial voltage of around 1.5 volts, goes down as you use it, and depending on the use case and brand are typically "dead" at somewhere between 0.9 and 1.1 volts. Rechargeable Nimh cells are actually about 1.3 volts fully charged, are near 1.2 volts most of their discharge cycle, and then drop to about 1 volt when discharged. They work just fine in anything that calls for aa/aaa. The only issue you might have is battery life indicators or low battery warnings not working properly.
Confidently incorrect. I have three devices where these AAAs did not work. Stop spreading half knowledge dude.
3
Oct 18, 2026 4:01 PM
1.6K Comments
Joined Sep 2004
defiantroaOct 18, 2026 4:01 PM
1.6K Comments
I have very few devices using AA or AAA batteries anymore. Everything from Temu uses lithium-ion and USB C, or AC plug now.
1

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Oct 18, 2026 9:18 PM
6.7K Comments
Joined Aug 2010
gamingdroidOct 18, 2026 9:18 PM
6.7K Comments
Quote from jpudlo View quoted comment :
Been using these for literally over a decade and really prefer these over any other rechargeable. The pro line seems to offer a bit better performance (at a cost, of course) as I'm slowly switching over as the older ones age out.
The Pro's have higher capacity, but is rated for significantly lower cycle count. I hear it's about 500 on Pro to 2000 on Standard.
Oct 18, 2026 9:19 PM
6.7K Comments
Joined Aug 2010
gamingdroidOct 18, 2026 9:19 PM
6.7K Comments
Quote from defiantroa View quoted comment :
I have very few devices using AA or AAA batteries anymore. Everything from Temu uses lithium-ion and USB C, or AC plug now.
Which sucks as it makes them more disposable devices.
Yesterday 12:34 PM
463 Comments
Joined Jul 2019
VioletFruit436Yesterday 12:34 PM
463 Comments
Quote from eeagle View quoted comment :
I've gotten over my rechargeable fascination, and eneloop is one of the best. So many devices don't perform well with the lower voltage, and the capacity is lower than an equivalent alkaline making changes/charging an annoyance in devices that that have to be paired and reset to work.
Everybody keeps repeating this nonsense about there being "so many" devices that don't work with 1.2v batteries, acting like that's some kind of reason to not buy them.
Other than devices that have strangely small physical battery bay connections for the + end of the battery so that the eneloop's slightly larger diameter nub won't physically fit into and make an electrical connection, I have yet to find any device that won't work at all with NiMH cells.
Yesterday 12:38 PM
463 Comments
Joined Jul 2019
VioletFruit436Yesterday 12:38 PM
463 Comments
Quote from gamingdroid View quoted comment :
Which sucks as it makes them more disposable devices.
Indeed. Or at a minimum, significantly more of a pain in the butt to replace the internal battery.

I've modded more than one pair of over ear Bluetooth headphones to mount an 18650 cell holder on the side, so I can have replaceable 18650s instead (and one of those will last for weeks/months before they need to be swapped).
Yesterday 1:17 PM
1.6K Comments
Joined Sep 2004
defiantroaYesterday 1:17 PM
1.6K Comments
Quote from gamingdroid View quoted comment :
Which sucks as it makes them more disposable devices.
You can replace the lithium batteries if you know do it. However, most devices do not mechanically survive that long before the batteries die.. just look at your cell phone. Do you expect something from Temu survive longer than your phone
Yesterday 11:38 PM
96 Comments
Joined Mar 2025
Playa1Yesterday 11:38 PM
96 Comments
Quote from ConsumerAdvoCat View quoted comment :
What is best to charge them with?
Electricity. Preferably DC.
1

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