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RICH SOLAR 20 Amp MPPT Solar Charge Controller

  • Automatically detects 12V or 24V DC system voltages
  • Compatible with various deep cycle battery options: Sealed, Gel, Flooded, and Lithium
  • Innovative MPPT technology with high tracking efficiency up to 99% and peak conversion efficiency of 98%
  • Electronic protection against reverse polarity, overcharging, over-discharging, overload, short-circuiting, and reverse current
  • LCD screen and multiple LED indicators for displaying system operation information, customizable parameters, and error codes
  • Features diverse load control; also capable of charging over-discharged lithium batteries
  • Die-cast aluminum design allows for efficient heat dissipation
  • RS232 port to communicate with BT-1 Bluetooth module.


  • Nominal System Voltage: 12V/24V Auto Recognition 
  • Rated Battery Current: 20A
  • Rated Load Current: 20A 
  • Max. PV Input Short Current: 25A
  • Max. Battery Voltage: 32V 
  • Max Solar Input Voltage: 100 VDC
  • Mounting Oval: 0.30 x 0.18 in 
  • Net Weight: 3.08 lb
  • Discharge Circuit Voltage Drop: ≤ 0.15V 
  • Overall Dimension: 8.27 x 5.94 x 2.34 in

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Ask a Question
  • I just purchased and installed this particular unit into my RV. How do you change the settings for the type of battery (I have a lead acid 6v Golf Cart deep cycle running in series). Also, what to change the temperature from Celsius to Fahrenheit?

    You can check the manual to set type of your batteries, the default battery is lead acid battery, so you do not need set it again. The display can show only celsius. Thank you! If you have any question pls give us a call at 1-800-831-9889 or send us email to

  • Can this solar charge controller manage a 18 v solar panel to charge 12 v batteries?

    Yes, solar panel is 18v, it is perfect to charge 12v batteries. This solar charge controller is the best one.

  • Is this controller compatible with Lithium Ion batteries and a proper CI/CV charge profile? Is there a manual that details it's Lithium Ion Support?

    Yes, it can support Lithium Ion batteries. Pls find the manual by this link,

  • Is there a rich solar bt1 module and where do I buy it? I have the rich solar 20 amp mppt solar charger? And if you're going to tell me to buy the renogy bt1 is it really going to work with my solar charge controller?

    We do not stock this model, but we are sure you can buy Renogy BT1, it is the same as ours. Thank you!

  • Will this handle 350 watts of solar?

    This charge controller can work with 350w solar panel that would charge 24v battery.

  • Can this solar charge controller manage a 24 v solar panel to charge 12 v batteries?

    No, if it is 24v solar panel, this charge controller will have the same output voltage to charge 24v battery.