Kratax 1.5V Rechargeable AA Lithium Batteries 16 Pack 3500mWh AA Lithium ion Batteries with 8slots Intelligent Battery Charger

These are wonderful batteries, and they work in Blink cameras really well! Great value! Get these!!

Almost all of my doors have keyless entry systems and this was advertised specifically for smart doors. They charged pretty quickly though you can only charge four of the eight batteries at one time. They have held up so far and I just liked the security that I'll always have AA batteries for flash lights in an emergency. I invariably am out of whatever battery I happen to need.

I use these on my Sound Devices MM-1 Preamplifier and my Transmitters! Having about 9hrs of Transmitter battery life is pretty great for rechargeables! Just wish they had more of a 10% battery life warning, but better than nothing. I also wish there was an 8 Bay charger instead of just a 4 Bay charger.

Thought these would be high quality batteries, wrong. I used them in my Blink outdoor camera, they died in 2 weeks of light use. After replacing with a fresh set, the short life of approximately 2 weeks repeated itself. Also, the built in feature that slightly drops voltage to give warning the battery is low never triggered. My camera just died unexpected. The batteries that come with the camera are rated lower but will last about a year. They are expensive but live up the expectations. Amazon was great in helping return these.Update: seller deceptively charged $14 restock fee for returning a couple days past the 30 day return window. Pathetic. Thank you Amazon for fixing this.

Batteries used in wireless in-ear monitors and microphones (Shure). Lasted 8 hours + continuous use. 2 hours recharge time. Very impressed.

Used batteries for Blink cameras and they work wonderfully.

The 'battery low' notification by dropping the voltage when the battery is close to depleting is exactly why I bought these - to use in smart locks etc. where the low warning is critical.Firstly, overall battery life is really poor, especially at this price point. The voltage drop feature only worked about half the time in my devices, and I got stuck a number of times with dead device due to dead batteries without warning.

My main use for these is in my Blink outdoor cameras.They are able to power up my Blink cameras, with a caveat.All three of my cameras work for some time now, but two of the three show the low battery warning right off the bat. Note, two of the cameras are from 2018.So far, they all have worked with no issue, will update if there are any issues with the camera.I had tried Eneloop HC, Duracell, and Engergizer Ni-MH, but they just did not provide enough volts.I've tried these on my XBox 360 controller and Wii controllers, and these have worked with no issue.The charging from USB-C is quite a bit faster than my Ni-MH as expected.Was able to charge each of these batteries in just under 3 hours from first low notification charge.