Well I've tracked down my "battery on its last legs" problem on my Wisper..
It seems the fuse holder in my Lishen battery wasn't making good contact with the fuse (some sort of sealent gunk on the fuse and contacts). Naturally when the motor was under high load, this bad contact started to heat up melting the plastic around the fuse holder (and lowering the voltage getting to the motor).
I tried cleaning the fuse holder contacts, but it still got very hot, so for now I've soldered the fuse in. (I'll replace it with a proper 30A car blade fuse type holder & 20A fuse).
Result:
A little bit more power perhaps (or am I imagining it)?
No low battery light after only 4 miles (I can call off the search for a new battery for a while longer!)
and certainly no molten plastic smell....
Cheers
Steve
It seems the fuse holder in my Lishen battery wasn't making good contact with the fuse (some sort of sealent gunk on the fuse and contacts). Naturally when the motor was under high load, this bad contact started to heat up melting the plastic around the fuse holder (and lowering the voltage getting to the motor).
I tried cleaning the fuse holder contacts, but it still got very hot, so for now I've soldered the fuse in. (I'll replace it with a proper 30A car blade fuse type holder & 20A fuse).
Result:
A little bit more power perhaps (or am I imagining it)?
No low battery light after only 4 miles (I can call off the search for a new battery for a while longer!)
and certainly no molten plastic smell....
Cheers
Steve