820-2915 2010 Macbook Pro 15" Doesn't Detect Battery in OS

[KappaDev]

Hello, I have a 2010 Macbook Pro 15" (Logic board 820-2915).

Battery is not detected in the operating system, does not show any battery symbol in top bar (on lastest MacOS High Sierra). System info shows battery not installed. Green light on charger and does boot.

I've tested several known good working batteries but no luck. Tried disconnecting battery indicator and rebooting but did not seem to help. Battery indicator does not show any lights (with or without power applied). The batteries I have to test with have been sitting for quite some time so they are most likely depleted (so I'm not sure if the board will run off battery).

SMC/PRAM reset attempted but also didn't seem to do anything.

No short to GND on SMBUS_SMC_BSA_SCL 6.49v or SMBUS_SMC_BSA_SDA 6.50v

PPBUS_G3H is 12.57V

Any suggestions? Boardview and schematics are attached.

[piernov]

Re: 820-2915 2010 Macbook Pro 15" Doesn't Detect Battery in OS

Are you 100% sure your batteries are good and compatible with the machine?
Any damage to the battery connector on the board or the traces around it? Does it look like it makes good contact with the battery?
R6950 good?

This is a 2011 model btw.

[KappaDev]

Re: 820-2915 2010 Macbook Pro 15" Doesn't Detect Battery in OS

Are you 100% sure your batteries are good and compatible with the machine?
Any damage to the battery connector on the board or the traces around it? Does it look like it makes good contact with the battery?
R6950 good?

This is a 2011 model btw.

No noticeable damage near connector. Continuity seems to be good between traces and battery pins. R6950 seems good, 10kOhm. Plugged into another mac battery shows fine (0% charging).