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.