Operating modes/charging mode (permanent settings)
2280073 Rev.1
Page 22
6.3 Charging AGM batteries
It is possible that the batteries used in some vehicles may be so-called AGM (
A
bsorbent
G
lass
M
at) batteries, i.e. batteries containing an absorbent glass-fiber mat.
These batteries require special attention. The charging voltage must never exceed 14.8V (or
29.6V for 24V batteries).
When AGM batteries are used, the adjustment of the MC
1500’s output voltage (see
section 10.3) must therefore be made with particular care.
Warning: An AGM battery will be permanently damaged if the charging voltage exceeds
14.8V (or 29.6V for 24V batteries).
The MC1500 is supplied with the output voltage set below the allowable limit for AGM batteries.
6.4 Charging gel batteries
Gel batteries are used in some vehicles.
These batteries require special attention. The charging voltage must be between 14.1V and
14.8V (or 28.2V to 28.8V for 24V batteries).
The trickle-charge voltage should not exceed 13.8V (or 27.6V for 24V batteries).
When gel batteries are used, the adjustment of the MC
1500’s output voltage (see section 10.3)
must therefore be made with particular care.
The charging current should be between 15A and 40A for every 100Ah of battery capacity. For
the maximum permitted charging current, refer to the technical specifications of the gel battery
in question.
Warning: If the gel battery’s charging voltage or trickle-charge voltage exceeds the levels
given above, battery life will be shortened. If these levels are regularly exceeded, the
battery will be permanently damaged.
6.5 Charging motorcycle batteries
Motorcycle batteries generally have a significantly smaller capacity than car batteries. This can
lead to the MC1500's maximum charging current (100A for 12V batteries) being too high for
some battery types.
Should this be the case, the MultiCharger's output current limit must be set lower accordingly
(see section 10.5).
For the maximum permitted charging current, refer to the technical specifications of the
motorcycle battery in question.
