Rechargeable aa Batteries 4packs,2 Hours Fast Charging aa Batteries USB Rechargeable,3000mWh aa Lithium Rechargeable Batteries and 1200 Cycles USB Rechargeable aa Batteries for Toy Cars Toothbrush

So far (± month) good stuff. They *actually* provide the current and voltage advertised?! That's all we ask, honestly. I'm one of those people who totally rabbit-hole doing research on *every* purchase (aka, I'm on the spectrum lol), and spent at least 12 hours over 2 days reading every. single. USB rechargeable. lithium battery. listing, and literally hundreds of reviews. There are probably dozens more new products listed since then, but these offered the best overall price/performance ratio. And so far, they've been great. 2 out of 16 cells seem to discharge *slightly* faster, but it's pretty negligible. On arrival, most were pre-charged to ±65% (13 of 16), and the remaining 3 of 16 to about 40%. Nbd, YOU REALLY HAVE TO FULLY CHARGE ANY BATTERIES FROM *ANY* BRAND BEFORE FIRST USING THEM! All charged up within about an hour, and then tested at above 1.5v, with a mAh/mWh delivery that meets or beats the 3000mAh/2000mWh stated on the batteries themselves. I'm impressed! It's understandable that we usually think that *any* claim made by *any* product is probably somewhere between 'slightly misleading' and 'outright lawyerball cr@áãåaäāâàp'. So it's cool to find *something*, even as mundan as AA batteries, that actually delivers what they promise. I'll update if anything weird happens!

There is no additional charger required to charge the battery. It is certainly a nice thing during the trip that we need to pack light and travel minimalist.The charging is done with USB-C cable that come with the product. It feels tight to plug in and out the cable, not sure whether there will be any contact issue in the long run. Only time will tell, may be I will come back with a longer term review after use it for a year or so.The batteries came with the green LED lights that will be blinking during charging and stay on when it is fully charged. It is quite neat as how they can put so many items in such a small form fit factor – just a regular AA battery size.

These are the answer!They work- I’ll be buying more.

It came on time that batterys come in a case and its on personal charger with 4 power heads the charge is pretty fast and long lasting you can also use your own personal charger as well incase if you lose your cord

These batteries come with a storage case and a recharging cable and are very easy to use and recharge. Looks like they are pre-charged since the first recharge only took about 30 minutes. Overall I like the batteries and hopefully they can last long.

Doesn't hold a good charge or take a good charge. Don't waste your time and money

What I didn't like about battery purchase is there is no way to monitor state of charge when using supplied USB charging cable. Bought a charger that corrected that concern. Batteries work great.

I bought a set of these batteries, 2 were bad out of the box. i returned them and got replacements. 1 of the 4 had failed. These are NOT GOOD BATTERIES.