20AH PWM Charge Controller Dual Battery STCC20

SKU: 102337
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Sale price£46.15 GBP

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20A Dual Battery Charge Controller

This controller is for off-grid solar systems and has the additional functionality that it can charge two batteries simultaneously and can work on both 12v or 24v systems.

The charging process has been optimised for long battery life and improved system performance. The comprehensive self-diagnostics and electronic protection functions can prevent damage from installation mistakes or system faults.

  • Reverse current protection.
  • Unique dual battery charging function.
  • Efficient Series PWM charging, increases battery lifetime and improves solar system performance.
  • 12/24V automatic recognition.
  • Overload protection
  • Open circuit protection
  • Lightning surge protection
  • Deep discharge protection
  • Charge current protection up to 20A

All solar panels (except the 5w &10W) require a voltage regulator to ensure that the battery is not overcharged. We recommend the this controller for panels up to and including 300w.

Technical Specifications
Electrical Specifications
Nominal System Voltage 12/24VDC (automatic system voltage recognition)
Battery Voltage Range: 6-36V
Rated Battery Current: 20A
Charge Circuit Voltage Drop ≤0.26V
Self-consumption: ≤6mA
Temperature Compensation Coefficient: -30mV/oC/12V(25o ref)
Over Voltage Disconnect Voltage: 16V/32V
Charging Limit Voltage: 14.6V/29.2V
Equalize Charging Voltage: 14.6V/29.2V
Float Charging Voltage: 13.8/27.2V
Operating temperature: -35oC to +55oC
Overall dimensions: 135 x 70 x 35mm
Mounting hole size (in case):  3.8mm
Terminal size:  6mm2
Net weight:  165g



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