ECTIVE SC 20 Silent
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controllers . However, systems with modules of higher nominal
voltage than the battery bank will always have an array Vmp
greater than the battery voltage . Additionally, the savings in
wiring due to reduced solar current make MPPT worthwhile
even in hot climates .
Four stage charging process
ChargingT ime
Night
Night
Float
Charge
Boost
Charge
MPPT
Charge
Equalization
Charge
U (V)
14.8 V
14.5 V
13.7 V
MPPT Charge
In this stage, the battery voltage has not yet reached boost
voltage and 100% of available solar power is used to recharge
the battery .
Boost Charge
When the battery has recharged to the boost-voltage value,
constant voltage regulation is used to prevent overheating
