Product Manual

Heavily Discharged Batteries (Lead Acid)
The BatteryPlus35-II is will not charge heavily discharged lead acid batteries.
In normal use, and with the BatteryPlus35-II battery health preservation, batteries
should never become heavily discharged.
If your battery is heavily discharged, disconnect if from the BatteryPlus35-II and
charge with a stand-alone charger. Reconnect the battery once the battery voltage
has recovered to normal levels.
Heavily Discharged Batteries (LiFePO4 HA Model only)
The BatteryPlus35-II-HA can recover and charge a heavily discharged LiFePO4
battery. The internal Battery Management System (BMS) of a LiFePO4 battery will
turn off the battery voltage if it detects that the battery is heavily discharged. The
BatteryPlus35-II-HA will provide the voltage to restart the LiFePO4 battery’s BMS
and then commence charging of the LiFePO4 battery.
USING THE BATTERYPLUS35-II AS A POWER SUPPLY (BATTERYLESS OPERATION)
The BatteryPlus35-II will act as a power supply if the following conditions are met:
1. A battery is not connected to the BatteryPlus35-II, and
2. The BatteryPlus35-II is configured to charge Lead Acid batteries, and
3. The BatteryPlus35-II is connected and powered by a mains power source, or
4. The BatteryPlus35-II is connected and powered by an 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 BatteryPlus35-II provides an output voltage of 12.8V.
When powered from an AUX input, the output voltage will vary depending on the AUX
input voltage. The outputs may turn-off if input voltage is less than 12.6V (right at the
auxiliary input connector of the BP35-II).
This mode of operation is unavailable with a solar power source.
FAULT PROTECTION
Electronic Load Fuse Protection
Each load output is protected by an internal electronic fuse. Electronic fuses are
auto-recoverable and eliminate the need for the user to replace a blown fuse.
The electronic fuse will act if the BatteryPlus35-II detects a current greater than the
current rating of the terminal and the Output Status Indicator on the BatteryPlus35-II
will flash red.
The BatteryPlus35-II will power off the faulty load and resume normal operation
once the fault has been rectified.
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