25
Battery Charging Management
To maintain the battery in a good state of health, an intelligently controlled charging
algorithm is used. The purpose is to ensure that the correct voltages are applied
to the battery terminals at the appropriate times throughout its usage cycle. For
blending with multiple sources refer to Multiple Inputs and blending on page 22.
AC Mains Charging
The
BatteryPlus35
is a full battery management system with a multi-stage battery
charger including soft- start, bulk-absorption and float charging modes to ensure
long battery life.
BatteryPlus35SR
and
BatteryPlus35PM
can only charge a Lead-
Acid battery, while the
BatteryPlus35HA
can charge Lead-Acid and LiFePO4 battery
types.
Details of the charging profile and settings can be found in Figure 8: Charging
Algorithm and Table 4: Charging voltage and current settings. The maximum time in
each mode is outlined in Table 5: Charging mode time maximum limit.
The power supply is able to deliver 35A maximum to the battery and loads. If
significant load current is present, the maximum battery charging current will be
reduced accordingly.
Note:
that for
BatteryPlus35
to operate in the manner described above, all loads
must be connected to load terminals, not directly to the caravan battery.
Solar Charging
Solar Charging with BatteryPlus35SR and BatteryPlus35HA
The
BatteryPlus35SR
/
HA
has an in built MPPT solar regulator. This solar regulator
follows the same changing settings as described in Figure 8: Charging Algorithm
and Table 4: Charging voltage and current settings. The current that can be delivered
to the system for solar relies on the limitations of the panels available and various
condition at the time.
The voltage generated by the solar panel must exceed 17.5V for two minutes in order
for the solar panels to start charging the batteries.
Solar Charging with BatteryPlus35PM
The
BatteryPlus35PM
charging currents relies on the external charger that has
been connected. The power of the external solar source needs to sized according to
the battery size, consult external solar controller manufacturer for correct number
of panels, charge profile and installation.
