Using The J35 As A Power Supply; Fault Protection - BMPRO J35B-L Owner's Manual

If your battery is heavily discharged, disconnect it from the J35 and charge with
a stand-alone charger. Reconnect the battery once the battery voltage has
recovered to normal levels.
Heavily Discharged LiFePO4 Batteries (J35B-L / J35D)
The J35B-L and J35D can recover and charge a heavily discharged LiFePO4
battery. The internal Battery Management System (BMS) of a LiFePO4 battery
will turn off if it detects that the battery is heavily discharged. The J35B-L or
J35D will provide the voltage to restart the LiFePO4 battery's BMS and then
commence charging of the LiFePO4 battery.
USING THE J35 AS A POWER SUPPLY (BATTERYLESS OPERATION)
The J35 will act as a power supply if the following conditions are met:
1.
A battery is not connected to the J35, and
2.
The J35 is connected and powered from mains, or
3.
The J35 is connected and powered from AUX input.
Power Supply mode allows you to control and power your caravan's loads
directly from mains or AUX without the need to connect the caravan battery.
When powered from the mains, the J35 provides an output voltage of 12.8V.
When powered from an AUX input, the output voltage will vary depending on the
AUX input voltage.

FAULT PROTECTION

Overload or Short Circuit Protection
If an overload or short circuit is detected the affected output will shut down. The
J35 will automatically attempt to restart the output every 30 seconds until the
fault is removed.
Over-Voltage or High Internal Temperature Protection
If an overvoltage or high internal temperatures are detected the J35 will
automatically turn off. Once the overvoltage is rectified, or the internal
temperature drops to normal levels, the J35 may be restarted by cycling the
mains input on and off.
Reverse Battery Protection
The J35 battery fuse and fuse fitted by your Jayco dealership at the battery
protects from accidentally connecting the battery to the J35 in reverse polarity.
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