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
Top Comments
Community Reviews
These 1.5V rechargeable lithium AA batteries are best for devices that want alkaline-like voltage, especially Xbox controllers, Blink cameras, smart locks, and other higher-draw gear. The built-in holder doubles as the charger, which makes the set convenient, and several reports say runtime is strong, with some devices lasting weeks or months and holding 1.5V better than NiMH cells. The main cautions are the sudden drop-off at end of charge, limited warning before shutdown, and the need for the right lithium-compatible charger and charging habits. A few packs also arrived dead or failed after a short time.
Common Questions (5)
They can last much longer than NiMH cells in higher-voltage devices, with reports of weeks to months of use in Xbox controllers and smart locks, and several months in a Flume leak detector. In Blink cameras, they work well for some setups but may still last less than disposable Energizers in harder-to-reach cameras.
Yes, the case is meant to be powered by USB-C and the listing calls for a 5V/3A supply. A lower-amp charger will still work but can take all day, while a charger above 3A is generally fine because the device only draws what it needs.
Yes. They hold a steady 1.5V until the internal cell is depleted, then can shut off abruptly, so devices may give little or no low-battery warning. That makes them great for devices that want full voltage, but less predictable for gear that depends on gradual voltage decline.
No. They need a charger designed for 1.5V lithium cells, and using a NiMH charger can overcharge the wrong chemistry and create a fire risk. A proper smart charger or the included charging case is the safe option.
A test with an XTAR VX2 Pro measured about 2000-2100 mAh, or roughly 2800-2900 mWh, at a 300mA discharge rate. That is below the headline 3000mWh claim, but still enough to outperform many NiMH AAs in devices that need a full 1.5V output.
AI-generated summary based on comments from the community. Updated ago
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167 Comments
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I have a half-dozen + brands and do capacity checks on all of them. The best AA are ~90%. They average 75-80%.
Almost all of the AAA are pathetic and rarely exceed 50%. Not enough room in the tiny can for chemistry AND electronics.
The second kit came with a different charger, and I think those batteries were rated 3,600mWH and they worked fine through the 2 cycle test so I deployed them. 4 of those are in Blink cameras working fine and the other 4 lasted about 3 months in my smart lock, which is similar to alkaline. While they are working fine, that "brand" also disappeared from Amazon.
My third purchase was from EBL. Those also seem to work fine, but they don't work with my Schlage lock (seems like the positive terminal is slightly larger in diameter). It seems these are slightly out of spec with standard AA cells, so this might be a unique situation but one to be aware of with these types of rechargeable AAs.
So, being a keyboard jockey here, but my time and frustration are worth more to me than potentially getting stuck with a dud, so I'm planning to stick with EBL (not for the lock) or Xtar going forward given the brands have been around for a long time.
If I had to start over (and didn't have the smart lock issue), I'd grab either the $30 EBL set (8 batteries and charger) or if still using some Nimh batteries, the $16 Xtar L4 Pro charger and the $23 set of 8 EBL batteries. While it's $9 more for this combo, the Xtar charger can refresh Nimh batteries (I have about a dozen Eneloops I still use for some low drain devices like remotes, mice and keyboards). I just bought the Xtar L4 Pro charger since my 10-year old Lacrosse BC700 seems to be on its last legs.
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They work very close to the alkaline AA batteries. The lithium keeps the 1.5v at a higher rate before dropping off at the end. So the advantage of this is to power devices that uses high voltage.
In contrast, our daily rechargeable Ni-MH batteries generally keeps about a 1.2V max and drops off quicker then these. So these are better but be aware they aren't your daily rechargeable battery.
I don't know if I got lucky with the Tenavolt and they are a lot more expensive but this feels like a 'get what you pay for' scenario.
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