I pulled out these Panasonic CGA103450A LiCo prism cells rated @ 1950mAh~3.7v from a Lenovo ultrabook a week ago. One of them was deadball while the rest were at 2.2X~2.7Xv. Threw them into an i4 and had them charged, sat them idle for a week and they're sitting happily at around 4.13~4.15v.
My only thing is I have nothing I could use these in! I was thinking a host similar in looks to the Starry Light would be able to accommodate these cells, but I dunno where to look.
I wonder if you can get a cheap searchlight and modify it to accept these batteries. Other than that, there really is not any other way to use these in a light.
Trust me when I say theres nothing clever in my head. I likes Suncoasters idea. Its a very clever idea. RBD or someone like that could build an amazing light with there creativity.
harbor freight magnet light and add a tp4056 board.looks like the triangle one will work too.
if you cant find anything to do with em holler.i can put them to work.