Bafang BSO2 shuts down for hours

libbybikes

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Aug 18, 2022
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I installed the mid drive Bafang BBSO2 3 years ago with the 2V Turbocharge battery pack in 2019 & have used it off and on for commuting until June 2022 when it refused to turn on. I replaced the display with the new DPC-18 and now it will turn on for 5 minutes & shuts down for hours. I can power it up in the work stand after a few hours & the motor engages when I turn the crank, but if I walk it outside to ride, it shuts down & won’t come back for hours.
 
It maybe a bent wire causing some level of intermittent high resistance.
Some copper strands may be parted within the insulation or some local corrosion at a connection or bend yielding high resistance.
No easy to find since continuity may be measured end to end of the complete wire.
 
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