Yes, you can charge a LiFePO4 battery with a solar panel. There are a few important things to consider to ensure safe and efficient success: Solar Panel Size: The size (voltage & wattage) of the solar panel should be compatible with the battery and solar charge controller needs and limitations. For instance, a larger solar panel array will charge the battery more quickly, but it also requires a charge controller that can handle the extra power. Although you can quickly deploy a battery with a solar panel of the same voltage class together for a quick top-up, it is best practice to use a solar charge controller between the solar panel and the LiFePO4 battery, especially in long-term solar charging applications. Solar Charge Controller: You want to ensure that your solar charge controller has a LiFePO4-compatible charging profile. For best efficiency, a Maximum Power Point Tracking (MPPT) controller is recommended for multiple panels in series and 24V-48V applications. A Pulse Width Modulation (PWM) controller is best for 12V applications and multiple panels in parallel. Charging Voltage and Current: LiFePO4 batteries have specific charging voltages and currents. Typically, they require a LiFePO4-compatible charging profile. You must ensure that your solar panel array and solar charge controller provide the appropriate voltage and current that matches the controller and battery specifications. Overcharging or charging at incorrect voltages can damage the battery or solar charge controller. For more information, please reach out to support.
