Operating Several Loads At Once - Xantrex Freedom EX 4000 Owner's Manual

Operating in Battery Mode

Operating Several Loads at Once

If you are going to operate several loads from the Freedom EX
4000, turn them on one at a time after you have turned the
inverter/charger/converter on.
Turning loads on separately helps to ensure that the
inverter/charger/converter does not have to deliver the starting
current for all the loads at once, and will help prevent an overload
shutdown.
20 Freedom EX 4000 Owner's Guide