Im having a similar issue with a board/ charger. It greens lights at 48.08 and wont charge past. Replaced a bms already and same issue. Turn it on and the battery reads like 85%or so. So this coul be the charger? Anyway, also similar problem to a few posts up. Obviously in th following pic, the torn hole batteries that made an audible venting noise are trashed but how about the other ones where it’s only deformed
To be honest I wouldn’t consider any of those usable because of how much it’s been pulled up
Maybe the top left, but either way, the nickel has not been removed very well
I wouldn’t weld them in packs, my last attempt was not fun .
Maybe usable standalone in small gadgets tho.
I changed the battery of my multimeter which turned out to be almost dead.
The voltage is pretty much consistent with the data from the VESC.
Still don’t know why it won’t charge past 48V.
Hah! Called it!
I haven’t been following your saga, have you taken the pack out yet or not? Also, what BMS?
You may have answered this before, but I don’t remember:
Have you left it on the charger for an extended period (hours or days) in case it’s a cell balancing issue?
Have you checked the p-group voltages?
If the groups are out of balance, have you checked to see if any balance current is flowing? (A DC clamp meter is nice for this)
It’s a Daly it says 12S and 48V on it which is probably the problem dammit.
I haven’t got the time to open it yet
I didn’t leave it on the charger for more than 30 min past the green light. This was the first time I plugged it to the charger, it’s a new pack I just finished. All the p-groups read 3.63 or 3.64 when I assembled them last week end.
That’s the right BMS
Is it supposed to charge to 50.4v?
Should I keep it plugged in?
Have you checked all the groups to be sure?
Not yet, I will open it tonight but they were balanced before the charge tho
Also make sure your charger is actually outputting 50.4V if you haven’t already.
Plug it to the wall and check at the output?
Yeah
Charger is good exactly 50.4v.
I’ll openthe enclosure tonight when the girls go to bed.
Just finished soldering up my BMS harness on my 10s LTT smart BMS, now all I got left is the charge port and fuse. I’m wondering, does it need to be fused on the positive or negative? And will need to be on C- or B-? I’m trying to have it where it can monitor the cells and stop them from being completely drained (which I’m sure I can do a cutoff in the vesctool) and also stop them from being over charged
Doesn’t really matter which side you fuse. I like to fuse the positive so there’s always a ground, but that’s personal preference.
Should be connected to C-.
Alright appreciate it. I have a fuse holder so I assume I connect the positive of the charge port to that, and the other side to the main positive on the battery harness