Solar Technology 20A Dual Battery Charge Controller (STCC20)

Solar Technology 20A Dual Battery Charge Controller

Ideal for larger off-grid solar installations, this 20A dual battery controller charges two batteries at the same time and works on both 12V and 24V systems. Its optimised charging routine promotes long battery life, while built-in self-diagnostics and electronic protection guard against wiring mistakes and system faults. Recommended for solar panels up to and including 300W.

Why choose this charge controller

• Higher capacity — handles panels up to 300W with a 20A charge current.
• Dual battery function — keeps two batteries topped up from a single array.
• Automatic voltage — recognises 12V or 24V systems without setup.
• Comprehensive protection — overload, open circuit, lightning surge and deep discharge safeguards.

Specification

• Recommended for panels up to and including 300W
• Rated battery current: 20A
• Nominal system voltage: 12/24V DC (automatic recognition)
• Battery voltage range: 6-36V
• Float charging voltage: 13.8V / 27.2V
• Operating temperature: -35°C to +55°C
• Dimensions: 135 x 70 x 35 mm
• Net weight: 165 g
• Part number: STCC20

Please check this part number against your existing part before ordering.