Jake257,
Sorry you had trouble with the charging deal on your Sofirn flashlight.
You have mentioned Acebeam a couple times and said how well they make flashlights.
And they do for the most part.
Before they were Acebeam, they were Supbeam, then they flirted with changing the name to Microbluebear but after we and many other people mocked that name they decided on Acebeam.
Anyway, back at the end of the Supbeam days they decided they were going to wow the world and invent a flashlight that would charge the batteries internally and switch between series and parallel.
This did not go well.
The model is Supbeam K50 like this;
http://www.sbflashlights.com/Supbeam-K50-p362.html
Grab a six pack and read up on the crap that went on with this flashlight and the responses from the manufacturer.
This thread can enlighten you as to the back and forth and probably allow you to realize that these makers are supportive right up to the point where they aren’t.
Still like this flashlight but I never once even attempted to charge the batteries inside the light.
Never like that idea with multiple cells to begin with, just too much power to have bottled up in a tube if something goes wrong.
Point is, cheap or expensive, these things are a work in progress some times regardless of who makes them.
Later,
Keith