XTARAAA Lithium Rechargeable Battery Triple AAA Batteries Rechargeable 1.5V AAA 1620mWh (8pcs 1620mWh 1.5V AAA)

Works great for my voltage sensitive Dymo Rhino labels maker that doesn't work with the typical 1.3v AA rechargeable batteries. Saves me from buying a proprietary battery pack for the darn thing.

These AAA batteries have been tested to easily be the highest capacity AAA batteries out there.I've tested these XTAR batteries along with the CZVV/Hixon AAA batteries which are popular on Amazon along with a Vapcell 3.6v 10440 cell and a regular alkaline Energizer Max AAA.Energizer MAX AAA: 639mAh/960mWhInitial Voltage: 1.61V(≈450mAh at 500mAh discharge tested on product sheet)CZVV/Hixon AAA: ≈720mAh/1080mWhInitial/Consistent Voltage: 1.52-1.51V(Rated: 730mAh/1100mWh) or 98% of ratingLast seen capacity before hidden/undocumented 1.1V mode: ≈585mAh/880mWH? (Needs a retest)XTAR AAA: 970mAh/1455mWhInitial/Consistent Voltage: 1.53-1.54V(Rated: 1000mAh/1620mWh) or 97% of mAH rating and 90% of mWh ratingCapacity before 1.1V: ≈720mAH/1080mWhVapcell 3.6V 10440 AAA: 361mAH/1300mWhInitial Voltage: 4.17V(Rated: 320mAh) or 112% of mAH ratingWhile the mWh rating on these batteries is fairly inaccurate, at least at the high discharge current of 500mA, These XTAR AAA batteries have at least 250mAH/375mWh more capacity than the popular CZVV AAA batteries and even 155mWh more than a trusted and reliable brand bare 3.6V cell.The CZVV batteries were found to also have a low 1.1v mode, though I didn't get to see the exact mAh figure this occurred at as this feature is not listed by CZVV.These XTAR batteries also have far more capacity than the Energizer alkaline at high discharge and higher capacity than NiMH batteries such as the Eneloop or even the Eneloop Pro batteries which have rated capacities of 980mAh/1176mWh while the XTAR provides a consistent 1.5V for most of its life. The XTAR batteries also recharge 4x faster or more than a NiMH battery would take to recharge.These batteries are best used in devices that would benefit from the higher voltage and have higher power demands such as Quest 3 touch controllers compared to a TV remote and would benefit from higher capacity for fewer battery changes as well as more reliable controller tracking along with displaying an actual full charge.While it is still too early to test reliability, I will keep this review updated with any new findings including reliability updates. Based on reviews of other lithium rechargeable batteries, these could have higher self-discharge rate than something like a NiMH battery.

The batteries are rated for 1000 mAh and 1600 mWh.Mine tested to be between 911-960 mAh, and 1276-1370 mWh. XTAR's own capacity tester was used as seen in my images.The mAh rating is pretty good as XTAR is usually pretty close on their advertised ratings, but I would like them to check their mWh rating calculations because they are wrong on every battery they sell.Once a rating is more than 10% below what they advertise, I start taking away stars as that's too much even accounting for all the variables involved.

Nice for those apps which dont like the low voltage of nimh.

My favorite lithium rechargeable for replacing alkalines. There are some applications where the extra voltage over the NiMH makes a difference. They require the special XTAR charger.

The batteries power the Gearlight LED flashlight I use. It contains 3 XTAR AAA batteries. It is very bright. It is also very HOT after two to three minutes. Too hot to hold without gloves, because it will BURN you hand. This does not happen with Alkaline AAA batteries.I also use these batteries in a dental appliance cleaner that is motor driven. It also uses 3 AAA batteries, and it does NOT get hot after running the small motor on battery power for 10 to 15 minutes.

As advertised!