lithium battery problem shutting down after short distance

tushingham2

Pedelecer
May 9, 2020
126
3
I have a 36 v lithium battery quite new i can run 1/2 mile it stops unplug, plug in and it’s ok for short distance again reading 42v any help would be good. The bike is okay with another battery
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,214
8,246
60
West Sx RH
Has one physically measured the battery voltage with a meter after charging ?
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
9,822
3,986
Basildon
If the lights suddenly go out when it shuts off, it's probably a connection issue. If they ramp down quickly, it's probably that you're over-loading the battery

Please give details of your controller. motor and battery.
 

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