After the initial two hours of use, the pull string will not come out of the battery. I can manually spin the sprocket to have it feed the string out, with tension applied, but there is no way pull it on it’s own. Does this mean I need to disassemble the unit to fix this? And where is this circuit breaker that I read about? Is that accessible from outside the device?
So 8 days and no response, no comments…
I haven’t hit that problem, and it sounds like a fault.
There are instructions for disassembly here: https://upperstory.com/en/spintronics/troubleshooting#batteryassembly
The image on this page might also be helpful: Spintronics Virtual Pack – Upper Story EU
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