Electrical Problem

[DaveG28]

Had an issue yesterday, my car cut out in rounds 2 and 3 after about 3 1/2 minutes. After round 3 I found the connector inside the TP 3200 Saddle for the -ve (not to the esc) had moved and melted the casing. Will try and get pics later!

Anyway, I've been trying to work out the cause (the round 2 one also did the same to my other Lipo but less severly). I was using Lrp motors and esc and they could well have been very hot (was running a 4.5 as my other motors are knackered or in other cars!), but would they ever heat the cell that much before just thermalling? Or would they thermal before this point?

The connector which goes into this female connector was in a state afterwards, so the alternative is if may have been a shonky connection that was arcing or something?

Any thoughts on what would overheat a battery like hhis much appreciated, I don't think it's a TP issue, but if I can find the cause can hopefully avoid repeats!