To the Tekkies: Not charging / water spill 820-3662-03
Hi,
just got my hands on a 15" late 2013 MBP with a tiny water issue (bottom of the case) Its working fine on Power - but the Battery is not charging.
i allready did smc reset and PRAM NVRAM Reset.
only 2 of the water indicators are red. One on the left Battery and the other is on the right side of the battery connector board. all other Indicators are white. there is no sign of corrosion - or signs of liquid on the mainboard - i have seen plenty....
I took a multimeter to check the battery and have measured several points with different voltage readings. (from right to left on the Batt. Connector board: 11,05V / 7,37V / 3,68V comming from the Cells).
When powered on - the main board Battery connector (left to right) gives following reading:
Batt NEG - sys 0,02V (possibly 0V)
Batt NEG - sda 3,38V
Batt NEG - scl 3,38V
Batt NEG - BATT 3S 1 12,84V
Batt NEG - BATT 3S 2 12,84V
Batt NEG - BATT 3S 3 12,84V
Batt NEG - BATT 3S 4 12,84V
Checking the Battery Connector (not connected to the mainboard) i get:
Batt NEG - sys 0,3V
Batt NEG - sda 0,18V
Batt NEG - scl 0,17V
Batt NEG - BATT 3S 1 0V
Batt NEG - BATT 3S 2 0V
Batt NEG - BATT 3S 3 0V
Batt NEG - BATT 3S 4 0V
does it just need a new battery? is the Connector board from the battery damaged? i have sources for new batterys for late 2013 Retinas - and yes - i know that it is not a "servicable" Part.
all help is very appreciated !!!
pics from coconutbattery:
btw- the residue on the Logicboard is from cleaning it - not from the spill..
Thanks, Mike
this is what i found on a polish site - i know this is not a late 2013 - but are the readings of the multimeter supposed to be the same?
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Did you take the logic board completely out? There's stuff on the other side.
из Dan
Dan, thank you for replying. Yes i have taken out and inspected the entire board. even with the magnifying lens i can see no corrosion. I cleaned it with isoprop alc and it looks like new...
Battery is still stuck to 8% and it says battery not charging.
btw it will not power up from battery.
I put the cocnutbattery information screenshot up now.
из Mike
OK, then your charging logic is having problems on the main logic board.
из Dan
this is what i found on a polish site - i know this is not a late 2013 - but are the readings of the multimeter supposed to be the same?
(Picture of Logicboard in above post?
[image|585294]
из Mike
ZZZ...
Here are the readings for:
"Red probe on ground, black probe on SCL pin of battery, then on SDA pin of battery, in diode mode with multimeter. Post voltages. "
in diode mode i get:
SCL 474
SCA 473
and (when hooked up to the charger)
SCL 678
SCA 679
I think i found 2 Chips doing "Voltage regulation":
http://www.aliexpress.com/item/LP8548B1S...
they are labeled 48b0 and 49b0
is it possible that they are doing what the ISL6259 used to do? or should i be able to find a ISL6259 on the board?
из Mike
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