Outdoor Solar Panel Lights Battery Charging Controller Upgrade or Replacement Board (1S-4S)

For wiring and using a solar-powered LED lighting system with a lithium battery. Follow the steps and precautions carefully to ensure proper functionality and safety.

Wiring Method:

* B+ and B-: Connect to the lithium battery.
* S+ and S-: Connect to the solar panel.
* L+ and L-: Connect to the output (e.g., LED).

Wiring Sequence:

* Connect the lithium battery: Ensure the battery has the corresponding protection board.
* Connect the LED: If the lithium battery has power, the LED will light up.
* Connect the solar panel: When the solar panel is illuminated, the LED will turn off. When the solar panel is not illuminated, the LED will turn on.

Precautions:

* The stable working output current of the control board must not exceed 600mA; otherwise, it may trigger output protection.
* Lithium batteries without overcharge and overdischarge protection must be used with corresponding protection boards. (Mobile phone batteries typically have 3.7V protection, but many 18650 batteries do not. 3.7V protection boards cannot be used in series.)
* Pay attention to waterproofing and insulation.
* LED lamps cannot use boost drive.
* The battery voltage of the controller is the output voltage. It does not limit current and voltage, so 2V or 3V LED lamp beads cannot be used directly. They need to be driven by a step-down constant current or a series current-limiting resistor. The output current is the maximum working current, not constant current.

Special Notes:

* The output power is the actual power. Please confirm the actual power consumption of the load before use.
* Directly connecting a 3V LED may damage the controller or LED.
* The battery must be equipped with a protective plate, and the battery voltage must match the open circuit voltage of the solar panel.

Suitable For :

Outdoor Solar Lawn Lamps, Solar Street Lights, Solar Landscape Lights, Solar Signage Lights, etc.