Review on Rechargeable AAA Lithium Batteries With Micro USB Charging Port - 1000 Cycle, 1.5V/400MAh - Pre-Charged, 4/Pack by Popeye Knight

I've had these batteries for about a week. After charging them I put them into my mouse and keyboard, and haven't had to charge them since. I like how the batteries have a built in usb to plug them directly into my pc for charging. Other usb rechargables that I've tried have a micro usb port that has to be connected to a cord in order to charge them. So far the only thing I don't like is that the positive cap that covers the usb is connected with a tiny piece of elastic and with probably break easily. When buying these you have to know a couple of things. First these batteries are 1200mah and most nonrechargables are 1500mah batteries. This means that the rechargables won't last quite as long as nonrechargables before needing to be recharged. Also These batteries are lithium ion batteries, and will not function well in extreme cold! In my opinion these rechargable batteries are good to use in remotes, and controllers that stay inside the house.