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sensor detail
Here is a closeup of one of the new BMS battery sensor modules. It was originally designed to bolt directly to the most negative battery terminal in the string of four that it monitors, but I don't like that design in an automotive environment subject to lots of vibration. I prefer to use Nordlock washers and to crank down the terminal screws to spec. I used a ring terminal to connect to one of the tapped bus bars or jumpers to measure the voltage. The four positive terminal leads are connected to smaller ring terminals and the taps on the bus bars or jumpers.
sensor detail
Here is a closeup of one of the new BMS battery sensor modules. It was originally designed to bolt directly to the most negative battery terminal in the string of four that it monitors, but I don't like that design in an automotive environment subject to lots of vibration. I prefer to use Nordlock washers and to crank down the terminal screws to spec. I used a ring terminal to connect to one of the tapped bus bars or jumpers to measure the voltage. The four positive terminal leads are connected to smaller ring terminals and the taps on the bus bars or jumpers.