Message from @ludverk
Discord ID: 392251957177221121
Samsung 30Q is the usual recommendation
available on Gearbest or Banggood cheapish with a coupon most of the time
i have a some I salvaged from dead laptop batteries, but they die eventually
or the LiitoKala ones if you want to go cheap
Depends on dead batteries
If you got ones that came discharged you're SOL
But recently I got one for 5 dollars that comes from a laptop that got broken, and it was near 50% charge
So perfect for storage
They work great and are powering my 6 cell powerbank
some had low voltage but they got 4.1v easily
these genuinely look like a death trap
but if you use them a little, they die after a while
>stepping on li ion pouches
yeah okay
Not in my experience, it's luck/informed purchases
I got one battery that had terrible cells
Rest charges to 4.18v, so all's well
and the voltage doesn't fall considerably
what's your routine for checking cells?
depends on yoru budget tho
nvm if its going to be in your car i'd get something bigger
i don't know, it was a 6 cell HP laptop battery that was clearly dead. most of the cells were 0.8v, some were 2.6v. i jerry riged something to revive them. just a 18650 holder with one of that little charging boards glued together. worked OK, most of them got 4
4v or more
i tried to make a power bank with the 2 with better voltage, but it doesnt work very well
if below 2.5v, throw away
sec
i going to check those samsung
Ok
PROVEN STEPS
1. Measure cell voltage, if lower than 2.5v, throw away
2. Charge. If they get hot, throw away
yes yes
more deals
<:pepestressed:327933525124841482>
3. Measure voltage after charging. If not 4.1-4.2V, throw away
4. Wait 30 min. If voltage fell under 4V, throw away
@Tervy im seriously considering those dragon balls
I don't know what I'd do with them