User manual MPPT Solar charge controller PowerXtreme XS20s
E18-XS20s-EN00
www.emergoplus.com
Page 11 of 49
Some types of batteries benefit from frequent equalizing charging as this
ensure mixing of the electrolyte, balancing of the battery voltage and the
cessation of the electro-chemical reaction. Equalizing charging increases
the battery voltage to a higher level than the standard supply voltage and
ensure the electrolyte to start gasifying. If subsequently the charger
automatically sets the battery to equalizing charging, the charging will
take 120 minutes (standard). In order to prevent that too much gas is
being generated or that the battery becomes overheated, equalizing
charging and boost charging will not be repeated during a full charging
cycle.
Remarks:
1.
If, as a consequence of the installation or load of the battery, the
system is not able to continuously stabilise the battery voltage at
a consistent level, the charger will start a timing-process and after
3 hours, when the battery voltage reaches the set value, the
system will automatically switch to the equalizing charging.
C] Floating charging
When the consistent voltage charging phase is finished, the charger will
switch to floating charging. In this case the charger reduces the battery
voltage by decreasing of the charging current and keeps the battery
voltage at the set value of floating battery voltage. During the floating
charging process, the battery is lightly charged to keep it fully charged. In
this stage all solar energy is available for users. When the load requires
CAUTION!
Overcharging, or situations where too much gas is
being generated, may cause damage to the battery.
Equalizing charging up to an excessively high level
or during too long a period of time may cause
damage. Carefully read the instructions of the
battery that is applied in the system.
