- 8 -
cycle above.
If the charge maintains the float state for 10 days, the charger will deliberately reset the cycle to protect the
battery.
Table 2.5.1 Battery Charging Processes
Table 2.5.2 Battery Type Selector
SwitchSetting
Description
FastMode/VDC
FloatMode/VDC
0
ChargerOff
1
GelUSA
14.0
13.7
2
AGM1
14.1
13.4
3
LiFePO4
14.6
13.7
4
SealedLeadAcid
14.4
13.6
5
GelEURO
14.4
13.8
6
OpenLeadAcid
14.8
13.3
7
Calcium
15.1
13.6
8
De-sulphation
15.5(4HoursthenOff)
For12VdcModeSeries(*2for24VdcMode;*4for48VdcMode)
De-sulphation
The de-sulphation cycle on switch position 8 is marked in red because this is a very dangerous setting if you
do not know what you are doing. Before ever attempting to use this cycle you must clearly understand what
it does and when and how you would use it.
What causes sulphation? This can occur with infrequent use of the batteries(nor), or if the batteries have
been left discharged so low that they will not accept a charge. This cycle is a very high voltage charge cycle
designed to try to break down the sulphated crust that is preventing the plates taking a charge and thus allow
the plates to clean up and so accept charge once again.
Charging depleted batteries
The XPT series inverter allows start up and through power with depleted batteries.
For 12VDC model, after the battery voltage goes below 10V, if the switch is still (and always) kept in "ON"
position, the inverter is always connected with battery, and the battery voltage does not drop below 2V, the
inverter will be able to charge the battery once qualified AC inputs are present.
