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I tested a method of reducing contactor / relay hold power consumption on one of the Chargery supplied 300A contactors. The capacitor needs to be 2000uF - I tested 1000uF and it was not enough to turn on the 300amp contactor coil. A resistor of around 17ohms worked to keep the contactor on...

I tested a method of reducing contactor / relay hold power consumption on one of the Chargery supplied 300A contactors. The capacitor needs to be 2000uF - I tested 1000uF and it was not enough to turn on the 300amp contactor coil. A resistor of around 17ohms worked to keep the contactor on. (I...

Did you extract the zip file, then select the .hex file.? Did you reboot PC, then check com port and try again.?

Correction. I calibrated the shunt with charge, then discharge amps, and all is well now.

Also - Shouldn't charging current be negative and discharging current be positive, like other BMS's show.?

Mine started to show correct SOC after I defaulted it. However The current does not go negative (below 0) when there is a net load. If I am charging with say 6amps, and turn on a 4amp load, the current reading drops to 4amps. All good. However if I turn off the charging so that there are 0...

The current does not go negative (below 0) when there is a net load. If I am charging with say 6amps, and turn on a 4amp load, the current reading drops to 4amps. All good. However if I turn off the charging so that there are 0 amps, and turn on the 2a load, the current stays at 0amps. Has...

Jason has responded to me emails. He is around.