20A Solar Charge Controller (12/24V, PWM)

This 20A Solar Charge Controller is designed for 12V and 24V Lead-Acid, Gel & AGM Deep Cycle batteries. It automatically detects the type of battery used in your set up and is plug-and-play (internal values can be adjusted manually).

• 20A Solar Charge Controller with 3-stage PWM charge management
• Supported battery types: Lead-Acid, Gel, AGM Deep Cycle batteries, 12V and 24V
• Dual USB output ports (5V, 2.5A)- compatible with multiple digital devices
• LCD display - voltage, status, time, load, output, charge & more
• Safe (CE-marked), easy to operate & install
  

Specifications

• Type: PWM Solar Charge Controller, 20A, 12V/24V
• Battery type: DC 12V/24V (autodetect)
• Charge current: 20A
• Discharge current: 20A
• USB output: 5V/2.5A maximum
• Maximum solar input: 23V (for 12V batteries) /46V (for 24V batteries)
• Equalization: sealed 14.4V / gel 14.2V / flooded 14.6V
• Float charge: 13.7V/27.4V
• Discharge stop: 10.7V/21.4V
• Discharge reconnect: 12.6V/25.2V
• Operating temperature: 35°C to 60°C
• Product dimensions: 134 x 70 x 35mm
• Weight: 165g

Electronic protection features

• Open-circuit protection
• Short-circuit protection
• Reverse protection
• Overload protection
• Dual Mosfet reverse current protection

Wiring steps

• Screw the adjustment screw anticlockwise until the plates move down
• Insert the wire into the new opening between the plate and the "top" of the terminal hole, not underneath it
• Screw the adjuster clockwise. The plate will move upwards, therefore squashing the wire in the terminal hole

Installation steps

• Connect the system in the exact order: battery, then load, then PV array
• Disconnect the system in the reverse order: PV array, then load, then the battery

Notes

• Ensure your battery has enough voltage for the controller to recognize the battery before the first installation
• Keep the controller in a cool & well-ventilated place to maintain good heat dissipation

View the user manual of the 20A Solar Charge Controller (12/24V, PWM).

Read our guide on solar charge controllers: MPPT vs PWM and sizing of charge controllers.

View all solar charge controllers available for sale in South Africa.

How to set up your 20A solar charge controller: video tutorial by @LenzWalters, Caribbean tech enthusiast