anyone got any information about STANDBY drain? i realized that the 12v rail for the BT module is "always on". so the processor and other stuff is "on" as well. i read that standby current should be around 0.2mA w/o BT connected. but at what voltage?
voltage of the pack? can't be. those BMS range from a few cells to 30 cells in series. if they all had 0.2mA (multiplied by voltage) the wattage would differ a lot. if it was 0.2mA of the whole pack it would drain the whole 30Ah pack in 30.000 * 5h = 150.000h = 17 years. i could live with that
but how could i measure the voltage drain? the BMS itself is powered by the balance leads, and i guess it takes the PACK's voltage to power it's logic board, as the cells drain evenly. i could just connect the first and last balance wire and see what happens. that way i could measure the current going over one of the wires. would this fry the board? it should NOT do any harm, but who knows?!