Bms lowers voltage of pack?

I am currently wiring two 6s lipos in series to a 12s bms. What is weird though, is that when I go to measure the B- one the bms, I get a readout of 44.9, but on the P- output, I get a readout of 44.1. Not exactly sure what is causing this, any insight would be very appreciated! :slight_smile: Also, is this something I shouldn’t really worry about, or is it an issue that has to be resolved?

The BMS requires a load, or draw, to actually discharge correctly. Until it’s connected a system that makes a significant draw you won’t get accurate measurements with a multimeter.

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Ok, thanks for the help! :slight_smile:

No worries. Just connect a vesc and motor to it and it’ll look right I expect.

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