If you have our DCDC charger, you can wire it according to the diagram below.
1.
Install the bypass switch connecting only the positive cable of the iTECH120X battery and
your main starting battery, or any other battery.
2.
Both batteries must share the same negative ground(the iTECHBCDC25 has an internal
common ground) common ground . Once the cable is installed you can simply press and hold
the button for a few seconds to reset the BMS.
