Would this be an option at the battery? https://www.delcity.net/store/Del-City-Manual-Reset-(Switchable),-Surface-Mount/p_811053.h_195738 ----Your terminal fuses look nice and clean.
I am going to take mine apart again and try to figure out why I have connectivity. I will look for a temperature probe but I assume they have them on a few of the leads.Sojourner said:A few things...
I did NOT have continuity between the case and the terminals. I only bought one cell. Regretting that now that it seems these units turned out to be pretty good. Paid all that shipping cost for one item...d'oh
When I hooked up a wire harness for BattGo BG-8S (max 8 cell) monitoring, for the first set of 7S (cells 1-7) the black wire went to Pin 2 (Cell1 neg) of the LG connector. Straightforward enough. But for the second set of 7S (cells 8-14), the black wire went to Pin8 (Cell8 neg) to get proper readings for the latter half of the cells. Kind of confusing, until I recalled what w0ss mentioned earlier about the original monitoring board being split into 2 parts.
And some questions:
Did anyone see any temperature probe leads when they opened the battery cases?
Did you see where the other wires go that come from the orange harness loom...the mystery pins (1,7,13,14,18,19,20,24)?
I really like this clean, pro-looking install. I took a while this afternoon, read through your thread carefully and then realized that I had not read through carefully enough - I have a different LG chem module. Lol ! :0 My module is a 5.94 KwH 3p 10s with the N2.1 60ah cells and (2) two 8-pin connectors ( one of them in the pic below). Any chance you have a resource/protocol you would recommend for figuring out the pins? I have some electronics experience, am miles short of an expert, but can follow directions. Thanks in advance for any help!
OK, thanks floydR. I'll give it a shot and then . . . probably come back with another question.a multimeter I used to figure out which pin goes to which cell for the battery you would have 11 pins one ground and 10 voltage lines to find the ground test each pin while touching the other pins one by one you might have to check a few pins before you find some voltage once you find two pins that give you voltage use one of the pins as the ground and touch the other pins if you get a voltage reading you have found the ground if not most likely the other pin of is the ground. map out the voltage of the pins 1-10 the other pins are probably temperature sensors/communications pins
I have an salvaged LG RESM with sorta the same setup mine is 7s1p 63Ah x 6 modules
Yes, I should have been more clear on several points.Thought the cells were in 10s ? 36v nominal
Is there a ground pin on each connector?
The cells probably alternate sides something like L ground pin1 R cell 1 pin1 L cell 2 pin2 R cell 3 pin 2 L Cell 4 pin 3 R Cell 5 pin 3 L cell 6 pin 4 R Cell7 pin4 L Cell 8 pin 5 R Cell 9 pin 5 L Cell 10 pin 6 not saying that this is how they are in the module.
You should be getting higher voltages than what is shown in pic. it may need to be charged with a balance charger at a extremely low current till all the cells reach 2.1v then can charge at a medium current till 2.5~2.8v range. then it can be charged normally.
ps may as well can start your own build thread