RS485 BMS cable wired correctly for use with compatible MPP Solar Inverters. This is a genuine product from MPP Solar.
You have three ways to utilise Pylontech batteries with MPP Solar Inverters. This cable enables the two BMS options and gives you true state of charge (SOC). Without this cable you are relying on voltage alone to give your inverter an SOC. Whilst this works just fine, it does not account for voltage sag under heavy load meaning you may not get the full discharge available to you under certain circumstances.