Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
frontpagebabgaly | Staff posted Yesterday 04:04 AM
frontpagebabgaly | Staff posted Yesterday 04:04 AM

Prime Members: Mupoer Ultra Thin Battery Charger w/ 4 Rechargeable AA Batteries

+ Free Shipping

$6.00

$20

70% off
Amazon
27 Comments 8,123 Views
Get Deal at Amazon
Good Deal
Save
Share
Deal Details
Mupoer via Amazon has for Prime Members: Mupoer Ultra Thin Battery Charger w/ 4 Rechargeable AA Batteries on sale for $11.99 - $6 off when you apply promo code JVLNSPXQ at checkout = $5.99. Shipping is free.

Thanks to Deal Hunter babgaly for finding this deal.

About this item:
  • 1.5V High-Power Lithium AA: Larger capacity, longer life, stronger output; ideal for Xbox, Blink (some models incompatible), cameras, toys; not for smoke detectors.
  • 2500-Cycle Rechargeable: Up to 2500 charges; no memory effect; low self-discharge; 0V activation revives fully drained cells.
  • Ultra-Thin Storage/Charging Box: Hollow design for easy battery removal; lightweight at 140g; highly portable.
  • Smart LED Indicators:
    • Flashing green = charging
    • Solid green = fully charged
    • Solid red = adapter/cable issue or temperature out of range
    • Flashing red = battery fault or overcurrent/over/undervoltage
  • 3-Hour Fast Charge (USB-C): Works with PC, wall adapters, power banks, car chargers; requires 5V/2A input.
  • Compatibility Notes: Not for smoke detectors or doorbell cameras. Suitable for solar lights, RC cars, flashlights, recorders, Wii; if power drains fast or LED shows red, check device compatibility.

Editor's Notes

Written by Neo45 | Staff

Original Post

Written by babgaly | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Mupoer via Amazon has for Prime Members: Mupoer Ultra Thin Battery Charger w/ 4 Rechargeable AA Batteries on sale for $11.99 - $6 off when you apply promo code JVLNSPXQ at checkout = $5.99. Shipping is free.

Thanks to Deal Hunter babgaly for finding this deal.

About this item:
  • 1.5V High-Power Lithium AA: Larger capacity, longer life, stronger output; ideal for Xbox, Blink (some models incompatible), cameras, toys; not for smoke detectors.
  • 2500-Cycle Rechargeable: Up to 2500 charges; no memory effect; low self-discharge; 0V activation revives fully drained cells.
  • Ultra-Thin Storage/Charging Box: Hollow design for easy battery removal; lightweight at 140g; highly portable.
  • Smart LED Indicators:
    • Flashing green = charging
    • Solid green = fully charged
    • Solid red = adapter/cable issue or temperature out of range
    • Flashing red = battery fault or overcurrent/over/undervoltage
  • 3-Hour Fast Charge (USB-C): Works with PC, wall adapters, power banks, car chargers; requires 5V/2A input.
  • Compatibility Notes: Not for smoke detectors or doorbell cameras. Suitable for solar lights, RC cars, flashlights, recorders, Wii; if power drains fast or LED shows red, check device compatibility.

Editor's Notes

Written by Neo45 | Staff

Original Post

Written by babgaly | Staff

Community Voting

Deal Score
+36
Good Deal
Get Deal at Amazon

Leave a Comment

Unregistered (You)

Top Comments

Sptx
508 Posts
92 Reputation
Thanks OP! Definitely worth a try.
FYI, these 1.5V Lithium batteries are rated in mWh. Most 1.2V NiMH are measured in mAh. For comparison, 3600 mWh at 1.5V = 2400 mAh at 1.5V per the conversion calculator linked below.
For reference:
Link to Conversion Calculator [convert-formula.com]
sarcasmogratis
14511 Posts
2318 Reputation
No name batteries with unlikely claims promoted by Paid SD Staff Influencer. Good luck.
they are cheap. TBD if you get your money's worth

Reviews sorted by most recent:
1,5,3,5,1,5,2,1,5,3

26 Comments

Sign up for a Slickdeals account to remove this ad.

Yesterday 04:43 AM
27 Posts
Joined Mar 2012
squeaks6385Yesterday 04:43 AM
27 Posts
Ordered, hope they are good quality. Thanks for the heads up
1
Pro
Yesterday 04:44 AM
9,038 Posts
Joined Feb 2007
trza
Pro
Yesterday 04:44 AM
9,038 Posts
Don't most Lion batteries have a 300 - 500 charge duty cycle? 2500 seems really high...
Yesterday 04:58 AM
508 Posts
Joined Feb 2013
SptxYesterday 04:58 AM
508 Posts

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

Thanks OP! Definitely worth a try.
FYI, these 1.5V Lithium batteries are rated in mWh. Most 1.2V NiMH are measured in mAh. For comparison, 3600 mWh at 1.5V = 2400 mAh at 1.5V per the conversion calculator linked below.
For reference:
Link to Conversion Calculator [convert-formula.com]
Last edited by Sptx December 4, 2025 at 10:01 PM.
5
Yesterday 05:06 AM
47 Posts
Joined Nov 2024
BeigeCrow552Yesterday 05:06 AM
47 Posts
Quote from trza :
Don't most Lion batteries have a 300 - 500 charge duty cycle? 2500 seems really high...
Yeah and likely not 3600mWh either. They often overrate rechargeable batteries. Keep expectations low.
Yesterday 05:20 AM
14,511 Posts
Joined Feb 2007
sarcasmogratisYesterday 05:20 AM
14,511 Posts

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

No name batteries with unlikely claims promoted by Paid SD Staff Influencer. Good luck.
they are cheap. TBD if you get your money's worth

Reviews sorted by most recent:
1,5,3,5,1,5,2,1,5,3
1
Pro
Yesterday 05:24 AM
9,038 Posts
Joined Feb 2007
trza
Pro
Yesterday 05:24 AM
9,038 Posts
Quote from BeigeCrow552 :
Yeah and likely not 3600mWh either. They often overrate rechargeable batteries. Keep expectations low.
Good point. That's way more juice than just about every reputable 18650 holds.

Edit: MWh vs mAh. Didn't catch that right away.
Yesterday 06:09 AM
842 Posts
Joined Apr 2018
Tedusmc2009Yesterday 06:09 AM
842 Posts
That are plenty rechargeable 1.5V Lithium batteries on Amazon that has being capacity tested. Most those batteries only has 80% of the list capacity.

Sign up for a Slickdeals account to remove this ad.

Yesterday 06:24 AM
508 Posts
Joined Feb 2013
SptxYesterday 06:24 AM
508 Posts
Quote from trza :
Good point. That's way more juice than just about every reputable 18650 holds. [img]https://static.slickdealscdn.com/images/smilies/emot-LOL.gif[/img]

Edit: MWh vs mAh. Didn't catch that right away.
Yes, Watt hours and Amp hours are not the same.. apples to oranges if you try a direct comparison. Easy to miss.
Not a deal killer IMHO, just something to be aware of.
Yesterday 07:13 AM
195 Posts
Joined Aug 2019
AmusedFruit500Yesterday 07:13 AM
195 Posts
It doesn't look like it will charge 1.5V lithium AAAs, which sucks since I use both AA and AAA lithium.
Yesterday 08:40 AM
758 Posts
Joined Apr 2004
Greg231Yesterday 08:40 AM
758 Posts
For now at least, you can order 2, and still get the discount.
Yesterday 12:25 PM
11,184 Posts
Joined Aug 2010
J03Yesterday 12:25 PM
11,184 Posts
Why would I need an ultra thin battery charger?
Yesterday 01:30 PM
1,061 Posts
Joined Nov 2011
maxblockmYesterday 01:30 PM
1,061 Posts

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

Quote from J03 :
Why would I need an ultra thin battery charger?
On-the-go/backpack/travel use.

I have a variety of chargers, and this one is pretty useful for that.

It's only slightly larger than a 4x AA organizer, has usb-c, and a closeable door. My two next-smallest chargers (Eneloop and EBL) are almost twice the size, and don't have a closeable door.
1
Yesterday 01:40 PM
581 Posts
Joined Dec 2014
FloridaKevinYesterday 01:40 PM
581 Posts
Alright, I will take the downvotes - what's up with all the American flags and even the statue of liberty on the Amazon link? These aren't made here right? I couldn't find the origin, so I am assuming they are made in China...
Yesterday 02:10 PM
923 Posts
Joined Apr 2010
jdmikey83Yesterday 02:10 PM
923 Posts
Thanks

Sign up for a Slickdeals account to remove this ad.

Yesterday 03:08 PM
428 Posts
Joined Mar 2016
harley48Yesterday 03:08 PM
428 Posts
Quote from J03 :
Why would I need an ultra thin battery charger?
You are aware these are not really chargers? All 1.5v lithium AA rechargeable 'chargers' are simply USB 5v distribution devices. The actual charge control is done in the battery.
FWIW I have 3 of these 'chargers' including one of like in the link. I like it. But, they all work and if the battery fits (there are minor size differences) you can use them for any of this type of battery. Even the USB-direct charge type charge OK in these, at least all the ones I have do.
Not a big fan of the USB-charge type. Some people like the 'simplicity', but the electronics take up space and ALL the USB charge type I own have less capacity.

Leave a Comment

Unregistered (You)

Popular Deals

Trending Deals