goldbrick
Well-known member
Impressive work Dala. Hope this fixes those cells and that they stay healthy for a long time.
Dala said:After charging the cell up and letting it sit for 16h, it unfortunately drooped back a few mV, indicating high internal resistance.
Should be able to swap leads with other cells (obviously tag them first) to verify.WetEV said:I worry that the real problem is a bad BMS. For some reason, perhaps the BMS is always discharging these cells.
powersurge said:Amazing work... Nice to see a forum member that can really attack this car...
COULD I ASK YOU FOR AN AMAZING FAVOR THAT CAN BENEFIT ALL OF US MECHANICAL TYPES?
PLEASE WRITE A LIST OF THE PROCEDURE OF HOW YOU TOOK OUT THE BATTERY....
I would love, down the road to try replacing a battery on my own....
Lothsahn said:Since you know they're bad, you may wish to replace the two cells as soon as possible. If you wait too long, the BMS may remove a health bar, making yours an 11 bar car. Unless you know how to do a BMS reset, you'll be stuck with an <12 bar car with a good battery.
goldbrick said:Could you explain why the voltage droop indicates high internal resistance? Is this due to the re-balancing going on or is this just how Li cells degrade or am I just missing it?
And once again, very nice work and thanks for sharing!
DaveinOlyWA said:Great way to stave off reality for what I think will be a few weeks at the most. Balancing happens all the time and every second, those two cells will fall farther and farther behind. I would replace them ASAP if not sooner.
WetEV said:I worry that the real problem is a bad BMS. For some reason, perhaps the BMS is always discharging these cells.
ElectricEddy said:I don't suppose it ever threw any DTC codes, what we might look for if running into a similar situation. Check with Leaf spy in the service menu-enable service screen/ Read DTCs.
Possible cell over discharge P3375-P338C or ASIC open P33E6 for example.
Please report back if any found.
They should still be there unless you cleared them with Leafspy.Dala said:ElectricEddy said:I don't suppose it ever threw any DTC codes, what we might look for if running into a similar situation. Check with Leaf spy in the service menu-enable service screen/ Read DTCs.
Possible cell over discharge P3375-P338C or ASIC open P33E6 for example.
Please report back if any found.
Yeah I'm kicking myself for not checking the actual codes it threw while in limp mode. But if they get the chance to come back before I get the new cell, I'll def post here.
Now done 50km since last charge, car still says it can do 120km (I know it wont) but let's see Feels good to be able to use it
kahi said:@Dala did you change the cell yet?
Enter your email address to join: