I wanted lithium ion and this set seems so far to be a good set to buy. I am testing them in my solar charger.
in our club we did buy a 3800 lumen lamp and it use 4 batteries like this ones that came with it they last a long time and are very realiable
these batteries are cheap and can work for long time ,also it's very quick to charge .
They are cheap. Also the effective time of working is good. I'm satisfied and I'll buy them again :). Also They come fully charged
These batteries are cheap enough that you can keep a few around in the charger waiting for use. This battery charges quickly.