CN3791 Solar Charge Controller Board 1 Cell Lithium Battery Charge Module
This is a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries.
This MPPT solar charger provide you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargable LiPo battery.
Set-up is easy as well, just plug your solar panel into one side of the solar charger and your battery into the other and you are good to start charging.
Solar maximum power point tracking (MPPT) is to ensure that the light intensity change, photovoltaic cells output maximum power, to make full use of solar energy.