RICH SOLAR 40 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.


  • Rated Battery Current: 40A 
  • Rated Load Current: 20A
  • Max. PV Input Short Current: 50A 
  • Max. Battery Voltage: 32V
  • Max Solar Input Voltage: 100VDC 
  • Charge circuit voltage drop: ≤ 0.26V
  • Discharge Circuit Voltage drop: ≤ 0.15V 
  • Working Temperature: -35°C to +45°C
  • Max Terminal Size: 8AWG 
  • Rated Load Current: 10% to 90% NC
  • Overall Dimension: 9.37 x 6.81 x 2.85 in 
  • Net Weight: 4.41 lb


Ask a Question
  • RS232 port to communicate with BT-1 Bluetooth module. Is there something else you need to purchase to make blu tooth work ?

    No, if you have BT-1, you do not need buy anything. We will have the stock of BT-1 next month.

  • I will be using lithium NMC batteries, the low voltage is 9 and the max charged voltage is 12.6. Does this controller allow you to adjust within this range?

    Yes, this solar charge controller can continue with 12v, so it is good for your battery.

  • What is the Watts it will handle was wanting to put at about two 325 watt panels on it

    Hi Kenneth, Thanks for your message. I am so sorry to delay your response because we are moving to the new warehouse today. For this 40A MPPT charge controller, it is perfect for your 2 panels of 325w, that will charge 24v battery. You can connect 700w maximum solar power with 40A MPPT charge controller. If you have any question pls send email to or call 1-800-831-9889. Best regards RICH SOLAR Customer Service Team

  • Is there a setting for AGM batteries?

    No, it is automatic.

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