2023-04-20 at 1:13 PM UTC
aldra
JIDF Controlled Opposition
broke my lithium cell charger and don't want to spend $60 replacing it so I guess I have to build one
2023-04-20 at 1:28 PM UTC
Its not too difficult. Just need nickel strips, a lil charging regulator doodad and some basic soldering stuff.
2023-04-20 at 2:08 PM UTC
aldra
JIDF Controlled Opposition
Elon Musk tried to send his BBC to the heavens and God smashed it
2023-04-20 at 2:19 PM UTC
Originally posted by aldra
yeah just gotta regulate input to 3.7v/1A AT MOST and cut it off when the battery can output 4.2v (check cell output every 30 seconds or so). you can curve the amperage, ie. drop it dfown to 200mA or something when the cell output gets close to 4.2 but I've just been pulling cells out of disposable vapes so I don't really care about memory effect
lithium cells don't output a constant voltage; when almost dead they output 2.4v, if you deplete them any further an unprotected cell will die permanently. nominal output is 3.7v and when fully charged they output 4.2v, keep pumping power in after that and you risk fucking it up and/or starting a fire
I found an old USB power bank though so I'll probably just pull the charging circuit out of that
Thats what ive done. Im a tech rat so i had boxes of old chargers and stuff.
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2023-04-20 at 2:21 PM UTC
aldra
JIDF Controlled Opposition
it's actually more expensive to build your own stuff nowadays
outrageous
2023-04-20 at 2:50 PM UTC
I'm on someone's livestream and can't escape.
2023-04-20 at 5:37 PM UTC
The fact 680 is considered a "good score" too
2023-04-20 at 5:44 PM UTC
I think they've done what they did with Exam scores...no one could pass so lets lower the standard of what "good" is.
Right now mine is 828 and I'm a bloody foreigner.
2023-04-20 at 5:46 PM UTC
I think Asians get better scores because they squint.