820-3437B Not charging

[2informaticos]

OSX reports battery percentage?
Does it start on battery alone?
Use another battery, with some charge, for this test; if original is drained.

Post CHGR_A/BMON with board on/off and battery present and not.

 

[Bouba148]

Yes OSX reports percentage
Yes it's starting with the battery alone
I'm using a battery charged at 70%

Board OFF with Battery Only:
CHGR_AMON: 0.00V
CHGR_BMON: 0.049V

Board ON with Battery Only:
CHGR_AMON: 0.00V
CHGR_BMON: 0.100V

Board OFF with Battery and Charger:
CHGR_AMON: 0.660V
CHGR_BMON: 0.00V

Board ON with Battery and Charger:
CHGR_AMON: 0.880V
CHGR_BMON: 0.49V

 

[2informaticos]

"CHGR_BMON: 0.49V"
Looks like battery is charging.
At least this signal shows battery receives current from MLB.
Unless you have a problem with R7150-52, or traces to pins 17/18 of U7100.

 

[Bouba148]

Hi,
Just to let you know that the problem is fixed.
Now with the board ON it's pulling almost 3 Amps, CHGR_BGATE stays low and pulsing like before.
I can see the percentage rising quite fast.
I fact, I think that in all the things I did, one of them solved the issue except that the battery was continiouly showing 1%. This one is dead.
So I replaced it with another one now it's charging normally.

Again thanks for your support and patience

You can set this Topic as Solved. but i you could just answser to the question regarding the battery logos......thanks

Best Regards

 

[2informaticos]

Left side logo shows battery is charging.
Right side not charging, probably "Replace now" advice in drop down list menu for battery...

 

[Bouba148]

Thank you Vali