ELARI EcoBattery - rechargeable battery AA 2 pack Li-ion battery with built-in USB C charging port, high capacity, low self discharge, ECO-friendly and cost-effective alternative of disposable battery

Bought these as an alternative to buying another docking station for my Xbox controller, would definitely recommend them.They seem to last a decent amount of time, and are easy enough to recharge, I just plug them into a USB plug socket.They even light up to show when they're fully charged.(I didn't rate they're longevity as I haven't had them long enough to know that really)

When one battery was plugged in, the LED glowed blue - I assumed that was the charging colour - 5 hours later, still same solid colour - tried it in the mouse - nothing. Plugged the other one in - it started flashing different colours...left it for a while - three hours later, it couldn't power the mouse either. Probably wasted some of my electricity though. Piece of rubbish.

I put these on charge for 3 hours as the packaging suggests and the charge lasted about 5 minutes. I tried it for a second time charging for longer, lasted about 10 minutes. The third time I charged them all day on 9th January and had to charge them today 2nd February. So persistence paid off. The lights are a bit confusing red i assume means low charge and blue means has more charge. I've not actually seen the lights turn off, so don't know when these are fully charged. Were worth getting but will need to be patient to get what I want out of these.

Good idea about design, but needs to be made a millimetre or two longer as normal batteries are that much longer...apart from that there ok.

One battery never charges. It always has 0% power and therefore can't be used for anything.

Disappointed, I bought them for my mouse. only one works, but it doesn't last long, it has non-negligible self-discharge. The other was completely unusable and couldn't be charged.

Brilliant. My ps5 media remote control will have these batteries in for their life span like all my other remotes. Ive brought before and will buy again brilliant idea

Useless! After an initial charge, they seemed to work just fine. However, I was never able to charge them up ever again! I used numerous different plugs, leads and adaptors but to no avail. Nice idea but terrible implementation!