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Problem
The charger is not
functioning
The battery is not
being charged fully
The battery is
overcharged
Battery charge
current drops to 0
when the absorption
voltage is reached
Cause
The AC input voltage or frequency
is out of range
Incorrect charging current
A defective battery connection
The absorption voltage has been
set to an incorrect value
The float voltage has been set to
an incorrect value
The internal DC fuse is defective
The absorption voltage has been
set to an incorrect value
The float voltage has been set to
an incorrect value
A defective battery
The battery is too small
The battery is too hot
Alt. 1: Battery overtemperature
(> 50°C)
Alt 2: Battery temperature sensor
faulty
Solution
Ensure that the input voltage is
between 185Vac and 265Vac,
and that the frequency matches
the setting.
Set the charging current at
between 0.1 and 0.2x battery
capacity.
Check the battery terminals.
Adjust the absorption voltage to
the correct value.
Adjust the float voltage to the
correct value.
Inverter is damaged.
Adjust the absorption voltage to
the correct value.
Adjust the float voltage to the
correct value.
Replace the battery.
Reduce the charging current or
use a battery with a higher
capacity.
Connect a temperature sensor.
- Allow battery to cool down
- Place battery in a cool
environment
- Check for shorted cells
Unplug battery temperature
sensor from the Multi.
Reset the Multi by switching it off,
then wait for 4 seconds and
switch it on again.
If the Multi now charges normally,
the battery temperature sensor is
faulty and needs to be replaced.
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