I know theres probably someone who already had the same issue as me…
Im trying to connect 4 6s 4500mAh Lipos in series and paralell, and im having issues connecting them up.
The Lipos are balanced and charged to the same voltage but as soon as i connect them up my connectors burn out. I already redid the wiring for the balance leads and the xt60 connectors that im using, my setup works fine with just two Li-Po`s in series. Maybe someone has a idea what i could be doing wrong.
My Setup:
170Kv Motor
40A Contactor with constant current source in paralell to precharge the Caps of my VESC and keep my contacts from dying
12S BMS
40A Fuse
Also sorry for any spelling errors i dont do english posts very often c:
upload some pictures and a diagram how you wired everyting up.
will help us to solve your problem.
and i didn´t understood what exactly burn out when you connect your packs in parallel. you wrote your connecots burn out.
you mean the xt60 connectors?
Im getting a spark when im connecting up my Lipos, i dont know why they are balanced and at the same voltage level, ive charred two connectors already and i have no ideay why.
If they’re actually at the same voltages then you’re definitely wiring something up wrong. You don’t need an antispark between the backs, assuming that you’ll be using a BMS.
First thing coming to my mind, is that maybe you are connecting parallel cells plus to minus, the same way as series. Or two series and one parallel between them.
Just remember, parallel is plus to plus, series is plus to minus.
I don’t know what you got going on without pics. But my setup is 12s lipos but I charge 6s parallel x2.
To charge I need to disconnect both plus and minus main power cables with two loop keys. Or that shit shorts out the balance wires. I have forgot a few times to un plug the two loop keys and it’s a bad seen. It vaporizers the pins in the balance plug.
Surely this can’t be right.
Why would there be a a pin after pin 12 that goes to the battery positive when pin 12 is already connected to the battery’s main positive? Assuming that this is in fact a 12s bms.