Chosen Solution
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?
Cleaning the board with isopropyl alcohol doesn’t get underneath the chips. You may want to consider sending your board out to someone who does board-level repair and cleaning, like what Luis Rossman does in NYC. If you do repairs on a regular basis, you may want to invest in an ultrasonic cleaner to repair water damaged boards yourself. Here is a link to a youtube video that may explain things further. Please excuse the language. Luis Rossman - Ultrasonic cleaner for repairing Macbook logic boards
Red probe on ground, black probe on SCL pin of battery, then on SDA pin of battery, in diode mode with multimeter. Post voltages. There are no schematics available for this laptop but this should be solvable through use of brains, same $@$* as every other machine. It is not an SMC issue because it sees the battery so that will likely not see much. You’ll want to check and see that current sensing resistors by ISL6259 are good. I can’t tell you where that is since there is no documented schematic or boardview for this, so you will have to use your brain and find it. There will be two black resistors going to each side of a cap, and each side of that cap going to ISL6259. The opposite side of the two black resistors will be going to a resistor that comes from a 16 or 18v line when the charger is plugged in. Measure those. And for F’s sake, stock batteries if you plan on fixing these so you can see if it is just the battery P.S. It is a serviceable part, remove old battery and put new one in. Apple service manual is for people with no brain, toss it in the trash.
