Keep batteries cool and dry; choose an appropriate location for installation.
In case of insufficient solar power and/or high current consumption, the battery should be subject to occasional
full charging by means of a mains supply charger.
The 12 V solar controllers protect themselves against connection of excessive battery voltage rates or will be switched-
off in case of defective additional charging systems, switching threshold 15.0-16.0 V.
Overvoltage Limitation:
Sensitive consumers are protected by means of a limitation of the charging voltage to max. 15.0 V during all modes of
charging.
Overload / Overheating Protection Solar Controller:
The solar controller is equipped with a double electronic protection against overload and with an automatic protection
against adverse installation conditions (e. g. insufficient ventilation, excessive ambient temperatures) by gradual
reduction of the charging capacity.
Voltage Measurement: Measurement of the voltage is to be effected at the battery and never at the solar controller
(loss at the charging cable).
Overvoltage Protection:
Battery charging parameter
Battery type
GEL
Lead Aicd/AGM1
AGM2
LiFePO4
Boost charging voltage
14.3V (3-10h)
14.4V (1.5-6h)
14.7V (1.5-5h)
14.6V (0.5-3h)
Float charging voltage
13.8V
13.45V
13.5V
13.6V
Default temperature
20℃
20℃
20℃
20℃
ATTENTION: Only connect LiFePO4 batteries with integrated BMS!
Note: The possible parallel/floating operation with consumers being connected to the
battery is also automatically considered by all charging programs.
Partially Discharged Batteries:
In contrast to other battery types, batteries on lead basis do not have any harmful memory effect. Consequently: In
case of doubt, partially discharged batteries have to be charged fully as soon as possible.
Always store only fully charged lead batteries. Recharge them periodically, particularly in case of used (older)
batteries and higher temperatures.
Charging Process
V/I
Charging time
charging voltage (V)
charging current(I)
Float charging voltage
Boost charging voltage
<100%
<75%
100% maintenance
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