Morningstar 20A-12V Charge Controller EN4 Buy online - A1 Solar Store
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Morningstar 20A-12V Charge Controller

$110.24 List price: $142.00 Save: $31.76 -22%
Warranty  —  5-YEAR WARRANTY
Delivery Time  —  5-7 Business Days

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Morningstar’s SunSaver is the world’s leading small solar controller for both professional and consumer applications including standard features and capabilities not found in any other small PV controller.

SunSaver’s technology provides:

  • Exceptional Reliability
  • PWM Battery Charging
  • Consistent High Quality


  • 100% solid state
  • Series design (not shunt)
  • True 0 to 100% PWM duty cycle
  • Setpoint accuracy to 35 mV
  • Rated for 25% overloads
  • Fully encapsulated in epoxy potting
  • Marine rated terminals / anodized case
  • Temperature compensation
  • Sealed / Flooded battery select
  • No need to derate
  • Parallel for 40 amps or more
  • Green charging / red LVD indicators
  • Approved for use in hazardous locations - Class 1, Division 2, Groups A, B, C, D
  • ISO 9002 quality programs

String Calculator

The Morningstar String Calculator will help you decide how many PV modules you may use in series and parallel with a Morningstar charge controller.

Morningstar, SunSaver Charge Controller, 20A, 12VDC, with Low Voltage Disconnect, SS20L-12V


Condition New
Dimensions LxWxH 1.75" x 2.5" x 7"
Manufacturer Morningstar Corp
Manufacturer Part # SS20L-12V
Model SS20L-12V
Operating temperatures –40 °C to +60 °C
Weight 0.75 lb
Delivery Time 5-7 Business Days
Special Features Sealed / Flooded battery Select


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Jeff 0 06/27/2019
Correction the max input voltage is 32.7v is this controller rated for this? Jeff.
Alex Kruglov 0 06/27/2019
I would not recommend using this controller with your setup.
Jeff Nettleton 0 06/27/2019
I am getting 2 300w Canadian Solar panels the voltage on each is max 32v. I will be charging 2 batteries each one with a controller because I have a 12-120 v inverter. Is this charge controller rated for 32v input?
Alex Kruglov 0 06/27/2019
Its rated for Max. solar voltage 30 volts.



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