820-00165

[Aaron]

Hi,

This Macbook Air has a slightly expanded battery. Trying to determine if it is a board issue or straight battery replace.

The board does charge another battery, however PPBUSG3HOT is 15 Volts and so is PPDCIN. Schematic says 18.5V

It's been reported the machine is a little slow as well. What's your take Duke?

Thank you

 

[dukefawks]

PPBUS should never go above 12.56V. I very much doubt a battery will charge if PPBUS was really 15V. Run internal diagnostics.