20A 12V / 24V Solar Charge Controller PWM Intelligent Regulator With USB 5V 2.5A

The unit features a durable ABS shell available in blue-black or orange-black finishes. A digital interface displays real-time status data, allowing you to monitor system health at a glance. The design prioritizes clarity, ensuring that voltage readings and mode settings are easy to read even in low light.

Utilizing Pulse Width Modulation, the controller optimizes energy transfer from panel to battery. It automatically detects whether the system is running at 12V or 24V, adjusting its output accordingly. This intelligent adaptation helps maintain optimal charge levels without manual intervention, supporting various current ratings up to 100A.

Built-in protections guard against short circuits, open circuits, reverse polarity, and overload conditions. Users can fine-tune the floating charge voltage, discharge stop point, and reconnect threshold to suit specific battery chemistry. Two USB ports deliver 5V 2.5A, providing direct power for phones and tablets.

This regulator is specifically tuned for Open, AGM, and GEL lead-acid batteries. It is not designed for lithium-ion or nickel-hydride chemistries, so matching the battery type is crucial for longevity. The device operates reliably across a wide temperature range, from -35°C to +60°C, handling diverse environmental conditions.

• Auto-adapts to 12V or 24V lead-acid batteries
• Dual USB ports provide 5V 2.5A output
• ABS housing in blue, black or orange
• Adjustable floating and discharge voltages
• Compact 134 g unit with clear status display

Item color

blue & black, orange & black (optional)

Charge current

10A, 20A, 30A, 40A, 50A 60A, 100A (optional)

Item size

133 * 70 * 35 mm / 5.24 * 2.76 * 1.38 in

Package size

135 * 80 * 40 mm / 5.31 * 3.15 * 1.57 in

1, The solar charge controller equipped with dual USB ports, support 5V/2.5A max USB output. 2, This product provides short-circuit conservation,open-circuit conservation, reverse conservation, overload conservation. 3, Perfect and safe to use in various applications, such as home, industrial, commercial etc. 4, Solar controller can clearly indicate the status and data, it can be conveniently switched modes and parameter configuration. 5, This product is perect for l-ead-acid batteries: OPEN, AGM, GEL, not suitable for nickel hydride, lithium ions, or other batteries. 6, Using PWM charge management, actually improve the c-harging efficiency. 7, Adjustable floating charge voltage, d-ischarge stop voltage and discharge reconnect voltage.

Make sure your battery has enough voltage for the controllers to recognize the battery type before installation.

The battery cable should be as short as possible to minimize loss.

The regulator is ONLY suitable for lead acid batteries: OPEN, AGM, GEL. (NOT suitable for nickel metal hydride, lithium ions or other batteries)

This controller can ONLY use photovoltaic panel as charging source, do NOT use DC or other power supply as charging source.

Specification

Battery voltage: 12V/24V Auto Adapt

Material: ABS

Max power: 120W(12V), 240W (24V)

Discharge current: 10A, 20A, 30A, 40A, 50A 60A, 100A

Max solar input: <50V

Floating charge voltage: 13.7V (defaul, adjustable)

Discharge stop voltage: 10.7V (defaul, adjustable)

Discharge reconnect voltage: 12.6V (defaul, adjustable)

Charge reconnect: 13V

Self-consume: <10mA

USB output: 2 way USB output, 5V 2.5A

Operating temperature: -35~+60℃

Item weight: 134 g / 4.73 ounce

Package weight: 165 g / 5.82 ounce

Package List

1 * Solar Charge Controller

1 * Instruction

Note