This sounds like it could be a problem with the battery connectors or the wiring harness. When something turns off when you hit a bump that is usually from a loose or faulty connector or a faulty wire. The first thing I would do is check the battery pack and make sure that all of the connectors are on the batteries tightly and also check the wiring and connectors between the battery connectors and control module.
Please let me know how it goes.
hi,thanks for the suggestion/information/guidance. I made a diagram of the batteries under this to help explain.So,I took the seat off and looked at the batteries. being a 60V I have 5 of them. 3 run parallel with the tires, and 2 are perpendicular.
ok so of the 5 batteries, the closest perpendicular battery to the front tire(1), the - is connected to the bike(not to the on/off battery disconnect switch) then +1 is connected to the -2. +2 is connected -3.+3 is connected to -4.+4 is connected to -5 and the + of that battery(5) is connected to the on/off battery disconnect switch. what happened was the wire that connected +4 and -5,was touching the wire that was connecting +2 and -3.the + of 2,- of 3 and + of 4, were just burnt to hell and there was black soot everywhere. battery 1 and 5 look ok, the connecters are still bright and shiny,with no burnt marks on them, so I now batteries 2,3,4 are done and need to be replaced, but should I just replace all 5 of them even though 2 didn't get fried?
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l + l -- l + l <---- this + to on/off battery disconnect switch
I l l l
I (3) l (4) l (5) l
I l l l
I l l l
I -- l + l -- l
--------------------------------------------------------
l (this corner burnt) l
l + (2) -- l
l l
l---------------------------------------------------- l } + and - connected here.
l l
l -- (1) + l <----- neg on this connect to the bike
l l
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front tire here
thank you for your help. I will defer to your knowledge and pick up 5 new batteries, sometime after payday.
harry sarai