Important notes :
As this cable is passive the BG-DU will display battery telemetry from only 1 battery when 2 batteries are connected. The battery from which battery info is read is selected randomly (first battery to respond to smbus master commands).
It is always the battery with highest voltage which handles the load. As the batteries’ voltage balance themselves during use they will tend to share the load 50/50.
At that point current and power information shown on the BG-DU will correspond to half the actual values and estimated runtime will be correct.
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