[SOLVED]820-00165 wil this boot without battery?

Repairable

Active member
oke, so when i put in a good battery no charger it boots into OS

when i remove battery, plug in charger it does not boot. (fan spins, green light goes orange, and i get a blinking battery symbol)

when i remove black flat io board cable and no battery it boots into OS

if i replace io board, io board cable with 100% working good on other logic board same result so io board and io board cable is not the issue.

i replaced connector on the logic board (the one for the black flat cable) no change
 

Repairable

Active member
no battery no io cable (821-1722-A )
PPBUS_G3H 8.57V
SMC_BC_ACOK 3.386

battery connected No io cable (821-1722-A )
PPBUS_G3H 8.38v
SMC_BC_ACOK 3.392v

battery + cable connected
PPBUS_G3H 8.41v
SMC_BC_ACOK 3.390v

no battery but cable installed (821-1722-A )
PPBUS_G3H 8.59v
SMC_BC_ACOK 3.392v
 
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