TENAVOLTS 1.5V AAA Rechargeable Lithium Battery, Pre-Charged Batteries with Ultra Long Service Life, 1.5V Constant Voltage Output, 1.8H Fast Charge, High Capacity, 1000 Cycles, USB Charger, 4 Counts

These are the perfect rechargeable batteries. Just like non-rechargeable batteries, they provide a full 1.5 volts and work correctly in all devices requiring AAA batteries!

I have used other rechargeable batteries in the past and they have not had the power output that these do. I use these in my car remote and 4 smart deadbolts and they work great. They last a long time per charge in the deadbolts, even with several uses per day.

After constant searching and reading reviews, I paid quite a bit for 2 of these AAA packs. I didn't even use them once - they were placed on a charger, and when I went to use them, they didn't work. So disappointing. I cannot recommend anyone buy these.

They do seem to output a constant 1.5 v. However, because they don't drop much in voltage, the device I but them in couldn't tell when they were getting low and it just died without warning.

I have both the AAA and AA versions, and they work great especially for our Blink outdoor cameras and remotes. I wish I could buy these in larger amounts without the mini chargers just to try and get them at a lower price point.