The MasterVolt ChargeMaster SCM20 PWM is a solar charge regulator based on PWM technology, designed to charge batteries with solar energy.

The Solar Charger is suitable for both 12V and 24V systems and compatible with all types of lead-acid batteries. Featuring a large display and switchable output with evening/night lighting function, this solar regulator is both safe and user-friendly.


  • Suitable for 12V and 24V systems
  • Compatible with all types of lead-acid batteries
  • Protection against water spray and high ambient temperature
  • Compatible with negative grounding
  • Optional temperature sensor available


Battery types Nominal charge current Max PV current Recommended PV power (12V system) Recommended PV power (24V system) Dimensions Weight Technology Temperature range Cable size Protection Relative humidity
AGM, Gel, flooded 20A 20A 360Wp 720Wp 98 x 189 x 53 mm (3.9 x 7.4 x 2.1 inches) 0.5 kg (1.1 lbs) PWM (Pulse Width Modulation) -20°C to 50°C (derating power > 40°C) max. 16 mm² over temperature, over load, high/low battery voltage, high/low PV voltage, short circuit, reverse polarity & HV transients 95% non-condensing
SKU MV131822000
Barcode # 131822000
Brand Mastervolt
Shipping Weight 0.5000kg

Manufacturer's warranty included

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