If you have the remote you can enter a computer controlled high voltage equalizing charge. It's a restricted 4th stage of the Magnum charging profile. Double check you have the correct profile programmed for your battery type.
Read your instructions how to enter this mode, it's hidden for good reason. Read and understand the warnings in the manual. A true equalizing charge will boil your batteries quite a bit. Leave the battery box open, make sure you have good airflow to vent the hydrogen gas.
Also you may want to pull the DC fuse for your fridge and any other non automotive electronics.