I was asked to look at a rather old (circa1998 I think) step-through front hub drive bike today.
I pulled the rather unusual battery pack out and discovered it had about 41v at the terminals off-load. The owner who has intermittent but severe dementia said it wouldn't charge and needed a new battery. I pulled it apart and found the locking key/power switch had failed. I shorted out the switch and the 3 lights on the twist throttle body lit up. Twisting the throttle did nothing. has anyone any ideas on this? I traced the cabling back to the controller and all looks ok, same with the connections to the motor. The controller is a bit of a mystery box, no labels or numbers on it at all.
I pulled the rather unusual battery pack out and discovered it had about 41v at the terminals off-load. The owner who has intermittent but severe dementia said it wouldn't charge and needed a new battery. I pulled it apart and found the locking key/power switch had failed. I shorted out the switch and the 3 lights on the twist throttle body lit up. Twisting the throttle did nothing. has anyone any ideas on this? I traced the cabling back to the controller and all looks ok, same with the connections to the motor. The controller is a bit of a mystery box, no labels or numbers on it at all.
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