Solar-Powered Li-Ion Battery Charging Circuit Documentation

Summary

This document describes a simple solar-powered circuit designed to charge a single 18650 Li-Ion battery. The circuit consists of a solar panel, a charge controller (Do solara), and the 18650 Li-Ion battery. The solar panel converts sunlight into electrical energy, which is then regulated by the charge controller to safely charge the battery. The charge controller ensures that the battery is charged at the correct voltage and current levels, and it also prevents overcharging.

Component List

Solar Panel

• Description: A photovoltaic panel that converts sunlight into electrical power.
• Pins: + (Positive), - (Negative)

Do solara (Charge Controller)

• Description: A charge controller designed for solar applications.
• Pins: - (Solar Negative), + (Solar Positive), out+ (Output Positive), out- (Output Negative), b+ (Battery Positive), b- (Battery Negative)

18650 Li-Ion Battery

• Description: A rechargeable lithium-ion cell commonly used in high-drain applications.
• Pins: Positive, Negative

Wiring Details

Solar Panel

• Positive Pin: Connected to the + pin of the Do solara (Charge Controller).
• Negative Pin: Connected to the - pin of the Do solara (Charge Controller).

Do solara (Charge Controller)

• Solar Positive (+) Pin: Connected to the + pin of the Solar Panel.
• Solar Negative (-) Pin: Connected to the - pin of the Solar Panel.
• Battery Positive (b+) Pin: Connected to the Positive pin of the 18650 Li-Ion Battery.
• Battery Negative (b-) Pin: Connected to the Negative pin of the 18650 Li-Ion Battery.
• Output Positive (out+) Pin: Not connected in this circuit.
• Output Negative (out-) Pin: Not connected in this circuit.

18650 Li-Ion Battery

• Positive Pin: Connected to the b+ pin of the Do solara (Charge Controller).
• Negative Pin: Connected to the b- pin of the Do solara (Charge Controller).

Code Documentation

There is no embedded code provided for this circuit as it does not contain any programmable components or microcontrollers. The charging process is managed by the Do solara charge controller, which operates based on its internal hardware logic without the need for external programming.