Recent content by Denis Heidtmann

Thanks for the advice and the warning. I will look for repair. -Denis

I think I could repair the battery but likely will not. I will look for a place to do the repair. In the mean time I will continue to use it. This brings me back to my question about the likely future for this battery unrepaired: Is it likely to improve through use and charging? My present...

Thanks. Your first explanation makes sense. I did some analysis and concluded the capacitance in question is 1200 uF. These batteries sat idle for a number of months, so that could be the cause of a weak cell or two. Do you suppose if we continue to use this battery will it get better or worse...

Progress. It acts like there is a capacitor in the system that when discharged draws enough initial current to trigger the BMS to shut down when the battery is switched on. However, when this happens it leaves the capacitor with some charge (38V at maximum). Hence, shutting off the battery...

After overnight w/ the battery sw off, I would expect that the problem would repeat. Time for the test: I unplugged the connector at the battery and inserted my test lead consisting of a 6 inch extension jumper with connections for a Fluke 87 voltmeter. That took about 5 minutes. With the...

I have two virtually identical ebikes. On one of them, the red bike, when I turn on the battery switch then press the button to boot the display the display flashes some version of its opening screen then it shuts down; goes blank. Further attempts pressing the button elicits no response. Then...