Batteries and battery cables are new, and tight, and there is no sign of any heat amongst them after running the cart
It is whatever is in the two black, plastic boxes under where the passenger sits that gets hot. The small box nearer the front (to which the forward/reverse lever connects) gets warm, but not that hot. We had that component replaced last year as, before that, it was definitely getting hot.
The larger box to the rear is very warm to the touch, which it never used to be. I have taken the cover off and there doesn't appear to be any damage or arcing in there, but I don't recall that one getting hot previously.
The person who fitted the new motor did tell Mrs Fox that she would have "the fastest 36v in The Villages" so I think the motor is too powerful for the original electrics and draws too much current, even though she doesn't go anywhere near full speed in it.
I shall be checking for binding brakes tomorrow.
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