/diy/ - Do It Yourself

>>2041426
>but even cells that aren't trashed lose their capacity over the years. If one or two cells are totally dead, the rest are probably worn out.
they won't be new, but a cell that goes open or that is otherwise flagged by a smart battery controller as faulty and unfit to charge isn't going to ruin the entire pack. in the usual 3S2P configuration of an older laptop battery, a single failing cell will damage its complement in the pair. the other four should still have some cycles left in them, obviously not new condition or even the same condition as others in the pack

>>2041458
>Surely it isn't 30% PF right
that's exactly why I'm not sure what you're measuring. the number doesn't seem quite plausible. 0.5 is possibly realistic

>>2041455
do not put in mouth or rectum

>>2041462
>presumes to lecture me on the identity between the two IC types
>doesn't understand the practical difference between split supplies and single supplies in opamp circuits
bruh I was using resistors for pull-ups while mommy was still changing yours. you might want to lurk more if you can't get a simple hysteresis circuit to work
>>2041518
>its more disappointing really that i have to use a p channel to use a op amp.
I didn't, what's your problem?