But once I connect my handmade 36V load, then in 2 seconds voltage is tripped, I guess by BMS as a kind of protection. And we can get voltage readings at battery +/- terminals. By this way we are simulating BMS to think that charger is connected. One way to get a voltage on the battery terminals is to supply +5VDC to Grey terminal ref to the picture and negative to Battery minus terminal. BMS locks power supply to battery terminals when battery is disconnected, hence you are not able to check voltage or connect any load to it.Ģ. ![]() ![]() For this purpose I have soldered in series three car 12V 22W bulbs as a discharge load. ![]() I’m trying to find a way how to manually discharge the batteries removed from bike or alternatively installed on it. One is equipped with bosch powertube 500wh, and another one with bosch powerpack 500wh.
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