[Solved] Advent Laptop Battery A14-S5-4S1P2200-0: Battery Pinout Required
@djibattworkshop Hi, apologies for not getting back sooner, I've tried about 4 of these batteries and none of them connect to the NLBA, I don't have any other battery analyzers like what you mention and I'm pretty sure that this pack doesn't use SMBus (which most modern packs use).
I'm certainly not buying specific laptops, or more analyzer tools, just to get a rough idea of health on a significant minority of batteries (most being for older battery packs whose laptops have probably long since been retired/dismantled) so these battery packs (as well as any other battery pack that doesn't communicate with SMBus) will either be sold as partially tested (if it charges with my Accucel-6 balance charger), or untested (if it doesn't).
No point in me breaking open these battery packs, since the capacity is unknown - I only tend to break apart packs who have locked up, but whose cells were at a good capacity when last charged/used.
Have the same battery on my desk
BMS marking is "A14 Battery VA5"
U2 is S24c02
u3 is 8254aa
Can confirm that the battery will charge with DC power supply, 1+, T2, -7
I have the exact same BMS, but instead of ~14v it has 2 parallel packs of 3 18650 in series providing 10,8v and 4400 mAh.
My problem was that 2 out of 6 cells were dead, and after a successful procedure, I brought them back to life. Anyway laptop keeps not recognizing the battery. I discovered that 1+ was on 0v. I tried many YT tutorial but none of them worked :(, the BMS is completely blocked. does anyone know how to reset it or make it work again?
I also tried connecting 3 batteries in series and directly connect bat- to 7-/6- and bat+ to 1+, but the laptop refuses to boot up and only battery led turns on in red. If I connect the power supply and hit power button, laptop boots up. I tried unplugging the power supply (with the batteries directly connected as I said before) while running and it didn't turn off, but linux keeps showing "battery not detected". I was thinking a way to bypass the battery verification on boot up, maybe with T2, but I'm not sure on how to do that, any ideas?
Paste BatInfo tab picture.
It is first page of Nlba1 software interface.
Is there a version for Linux? Anyway, the battery is not detected, even if I connect the bms.
If I list /sys/class/power_supply/ I only get AC_Power. I tried many utilities, but none of them detects the bms.
There's only reference to the SMBus Controller using lspci, but nothing else.