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iconian | Staff 139K Views
Aug 5, 2026 4:43 PM

8-Pk Mupoer 1.5V 3000mWh Rechargeable AA Lithium Batteries w/ USB-C Charger

$15

$25

40% off
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Deal Details
This popular frontpage deal is available again with a new promo code.

Mupoer via Amazon has 8-Pack Mupoer 1.5V 3000mWh Rechargeable AA Lithium Batteries w/ USB-C Charger on sale for $25.49 - $10.50 off when you apply promo code RWNXLADX at checkout = $14.99. Shipping is free w/ Prime or on $35+ orders. Thanks to Deal Editor iconian for sharing this deal.

Includes:
  • 8x 1.5V 3000mWh high-power rechargeable lithium AA batteries
  • 1x charging and storage case
About this product:
  • Charging box combines storage and charging
  • Rechargeable up to 2500 times
  • Smart LED display shows charge and error status
  • Requires the included charger and a 5V/3A power source

Editor's Notes

Written by StrawMan86 | Staff
  • About this Store:
  • Additional Information:
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Expired promo code:
  • XGSDNR47
  • HWNEUTDC
  • NVKXCPXF
  • SXPEQGU9
  • NVHHEPPK
  • PNJJDPVL

Original Post

Written by iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
This popular frontpage deal is available again with a new promo code.

Mupoer via Amazon has 8-Pack Mupoer 1.5V 3000mWh Rechargeable AA Lithium Batteries w/ USB-C Charger on sale for $25.49 - $10.50 off when you apply promo code RWNXLADX at checkout = $14.99. Shipping is free w/ Prime or on $35+ orders. Thanks to Deal Editor iconian for sharing this deal.

Includes:
  • 8x 1.5V 3000mWh high-power rechargeable lithium AA batteries
  • 1x charging and storage case
About this product:
  • Charging box combines storage and charging
  • Rechargeable up to 2500 times
  • Smart LED display shows charge and error status
  • Requires the included charger and a 5V/3A power source

Editor's Notes

Written by StrawMan86 | Staff
  • About this Store:
  • Additional Information:
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Expired promo code:
  • XGSDNR47
  • HWNEUTDC
  • NVKXCPXF
  • SXPEQGU9
  • NVHHEPPK
  • PNJJDPVL

Original Post

Written by iconian | Staff

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Deal Score
+586
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167 Comments

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Aug 8, 2026 2:56 PM
8 Comments
Joined Nov 2022
magdalarAug 8, 2026 2:56 PM
8 Comments
I love these batteries, and the charging case. Bought my 3rd set -- great for controllers.
Pro
Deal Editor
Aug 8, 2026 3:39 PM
13.5K Comments
Joined Jun 2008
Nate650
Pro
Deal Editor
Aug 8, 2026 3:39 PM
13.5K Comments
This popular deal is still available.
1
Aug 8, 2026 4:38 PM
212 Comments
Joined Oct 2016
nevillelee2004Aug 8, 2026 4:38 PM
212 Comments
Are these safe, we've all heard the horror stories about cheap lithium catching fire randomly. The big brands don't even use rechargeable lithium, only NiCad
Aug 8, 2026 4:47 PM
272 Comments
Joined Mar 2017
JabberwockishAug 8, 2026 4:47 PM
272 Comments
Quote from NunyaBidniz View quoted comment :
Where do you find these codes? Need one for the 24pack...
The vendors send them to Slickdeals as a method of advertising.
Aug 8, 2026 5:21 PM
3.7K Comments
Joined Jan 2011
WandAug 8, 2026 5:21 PM
3.7K Comments
Quote from Phixion35 View quoted comment :
mAh is indeed a legit measurement unit, but one measurement may matter more than the other depending on use case. Interestingly, I find that NiMh and NiCd batteries generally list mAh while lithium almost always go by mWh... Maybe because the mWh figure is visually higher number? Many electronics out there do require a minimum mAh level though to function and the benefit of lithium cells is they put out the full 1.5V that alkaline provide while NiMh only put out 1.2V which some electronics don't like or the battery will seem to wear down faster between charges.

For this SD, the price is good but the capacity is lacking...
Suggest me with ones with the best capacity.
Aug 8, 2026 5:41 PM
602 Comments
Joined Dec 2018
CleoThymeAug 8, 2026 5:41 PM
602 Comments
These 1.5v rechargeable lithiums are interesting. they presumably contain a 3.7v lithium cell and electronics to step down the voltage to 1.5v so they can be used with the countless devices that take AA batteries. with this design, the battery can output a constant 1.5v until the 3.7v cell is depleted and then it cuts off completely. alkaline/NiMH batteries are just simple cells and the voltage steadily declines as they become depleted.

the ones i have seen in the past integrated a charging port into each battery (usb C or microUSB originally). that seemed smart. these (and other similar ones) don't.

it appears though that at least the charging standard for this specific type of battery is the same across brands. correct me if I'm wrong, but the brains of the operation are inside each battery, and the charger simply pushes 5v to the battery and the battery detects this and uses it to appropriately charge its internal (3.7v "nominal") cell. So while you cant charge these in a NiMH charger, nor a 3.7v lithium ion charger, and neither can you charge any other type of battery in this battery's charger, at least you can charge different brands of this battery type in different brands' chargers.

maybe soon the "swiss-army-knife" type chargers will add support for these.
Last edited by CleoThyme August 8, 2026 at 10:49 AM.
Aug 8, 2026 5:49 PM
431 Comments
Joined Jul 2020
Phixion35Aug 8, 2026 5:49 PM
431 Comments
Quote from Wand View quoted comment :
Suggest me with ones with the best capacity.
I didn't have specific ones I can recommend, but I have seen multiple ones that are 4,000+ mWh which are well above 2,500 mAh that many power intensive devices need.
1

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Aug 8, 2026 6:51 PM
2.5K Comments
Joined Aug 2006
trueliesAug 8, 2026 6:51 PM
2.5K Comments
seems bad rewiews said usually turn bad after two months, which is normal for chinese batteries
Aug 8, 2026 6:58 PM
159 Comments
Joined Nov 2024
HonestCircle906Aug 8, 2026 6:58 PM
159 Comments
Quote from RickK9165 View quoted comment :
I got these, one of the batteries was bad, customer service responded in a day and had me buy 2 more batteries then refunded me. Based on that customer service alone I'd keep buying these. Not to mention they last longer than any of the USBC li-ion batteries I've bought. 5 stars!!!
Same brand ?
Aug 8, 2026 7:16 PM
448 Comments
Joined Jun 2010

This comment has been rated as unhelpful by Slickdeals users.

Aug 8, 2026 7:30 PM
2.3K Comments
Joined Apr 2010
robj144Aug 8, 2026 7:30 PM
2.3K Comments
Quote from SDSummerDay View quoted comment :
Except mah is a bogus unit. It only makes sense when the voltage is the same. By itself It's not unit of energy nor power Not sure why people even using it. Except to make your number look bigger.
WH is it an actual unit of power.
mah is a measure of charge and WH is a measure of energy.
Aug 8, 2026 7:41 PM
9 Comments
Joined Oct 2022
RubiksSolver1Aug 8, 2026 7:41 PM
9 Comments

Our community has rated this post as helpful. If you agree, why not thank

Picked up a case yesterday. Tested these using the XTAR VX2 Pro.
Got about 2000-2100 mAh / 2800-2900 mWh off these at a 300mA discharge rate. Though many people report these batteries failing after a few cycles, hasn't happened to me yet.
Last edited by RubiksSolver1 August 8, 2026 at 01:15 PM.
3
Aug 8, 2026 8:00 PM
2.2K Comments
Joined Dec 2007
xceebeexAug 8, 2026 8:00 PM
2.2K Comments
Is the coupon code dead?
Pro
Global Mod
Aug 8, 2026 8:03 PM
5K Comments
Joined May 2008
pur
Pro
Global Mod
Aug 8, 2026 8:03 PM
5K Comments
Quote from xceebeex View quoted comment :
Is the coupon code dead?
HWNEUTDC still seems to work. If you're using the Amazon don't forget to tap the arrow in the promo code box to apply the code.

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Aug 9, 2026 12:24 AM
83 Comments
Joined Nov 2014
TomonlineAug 9, 2026 12:24 AM
83 Comments
Seems dead

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