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pnwfireguy asked

BP100 lithium mode not disconnecting

I am using a BP100 programmed in lithium mode to connect and disconnect my PV array from my non-Victron MPPT solar charger. My BMS control, which sync' voltage to ground, is controlling a small SSD coil. The output of that SSD is the 12vdc applied to pin 2.1 on the BP100. When my BMS tuns off its charge enable relay I am able to confirm the SSD relay turns off as well. However my solar charger display panel still indicates that it is charging my lithium pack. With a volt meter I measure no potential across the BP100 source/load posts. In short with pin 2.1 12vdc source removed the load is not being disconnected. It is my understanding that the the BP100 will not allow back feeding.

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1 Answer
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nebulight answered ·

Do you have a smart BP100? If so you can see what it's doing in the app. I have my BMS also hooked up to a BP100 for my DC-DC charger AND my mppt (victron). When the high signal is removed it will update the app showing DISABLED BY REMOTE.

Do you have a BMV or other battery monitor? Can you see if you are getting charge current to your battery?


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