I've got a L-mini II on its way, so I figured I'd try to come up with some 18650's to use in it. Turns out that my wife just replaced her old laptop battery, so I popped it open and pulled out 6 cells.
Each cell measured around 3.9v when I broke them apart. I charged them all in my Pila charger, let them set for 30 minutes after pulling them out of the Pila, and then measured them again to find that all of them had settled to about 4.12v. I read a post here that indicated that as long as they don't settle below 4v within 15 minutes of charging, that they should be fine, but since I can't seem to find the post that said that, I'm suspicious that I might be remembering wrong.
Also, they were connected using thin strips of metal (tin?) that were spot welded 4 times on each end. I trimmed the metal as well as I could with diagonal cutters. Is that cool? or should I attempt to break the spot welds somehow?
Anyways, I think I have 6 usable unprotected 18650's to use when my L-mini II arrives. I figured I'd just post this just in case I missed something important that one of you might spot.
--flatline
Each cell measured around 3.9v when I broke them apart. I charged them all in my Pila charger, let them set for 30 minutes after pulling them out of the Pila, and then measured them again to find that all of them had settled to about 4.12v. I read a post here that indicated that as long as they don't settle below 4v within 15 minutes of charging, that they should be fine, but since I can't seem to find the post that said that, I'm suspicious that I might be remembering wrong.
Also, they were connected using thin strips of metal (tin?) that were spot welded 4 times on each end. I trimmed the metal as well as I could with diagonal cutters. Is that cool? or should I attempt to break the spot welds somehow?
Anyways, I think I have 6 usable unprotected 18650's to use when my L-mini II arrives. I figured I'd just post this just in case I missed something important that one of you might spot.
--flatline