[SOLVED]820 3332, don't start with battery plugged

[Noguinfor]

Hey guys,

Other shop repair while replacing the trackpad fuck charge circuit!!!

this board don't start with battery connected, and when i plug the battery the fans run's intermittent!! (original charger). with a fake charge the machine start's well but don't recognize the battery!!

this board has never been touched! Q7080 again??

thaks

 

[TCRScircuit]

Resistance between pins 17/18 and 27/28 of the ISL?

 

[Noguinfor]

22ohm + 5.3ohm !!

 

[TCRScircuit]

Voltage on PPVBAT_G3H_CONN and PPVBAT_G3H_CHGR?

 

[Noguinfor]

PPVBAT_G3H_CONN = 12.56V but not constant. voltage drop 12.56v to 6.7V and go again to 12.56v.

PPVBAT_G3H_CHGR = 12.56V constant!

 

[TCRScircuit]

I'm guessing you tried a good battery?

 

[Noguinfor]

TCRScircuit, ty for you help! yes battery problem!! the client fuck the battery when tried to replace a trackpad! ty

 

[dukefawks]

Good luck finding a good battery for these. You will find your Chinese garbage replacement will shut down somewhere around 20%.....