1 Bộ Tấm Năng Lượng Mặt Trời CN3791 MPPT, Năng Lượng Mặt Trời Power Panel, Mô-đun Sạc Pin Lithium 6V 9V 12V

1SET CN3791 MPPT solar panel solar power panel lithium battery charging module 6V 9V 12V

features:This is a solar charger for maximum power point tracking (MPPT) of a single lithium battery. This MPPT solar charger allows you to get as much power as you can from a solar panel or other photovoltaic device and load it into a rechargeable lithium battery. It's very easy to use, just insert the solar panel into one side of the solar charger, and then insert the battery into the other side to start charging!
Solar maximum power point tracking (MPPT) is to ensure that the light intensity changes, photovoltaic cells output maximum power to make full use of solar energy. In general, switching mode DC-DC converter is needed to realize MPPT function to maximize the product of output voltage and charging current (output).
The output of the solar charger is designed to charge a single polymer lithium-ion battery. The load should be connected in parallel with the battery. Each solar charger is equipped with cn3791 power tracking battery charging circuit, and four 2-pin JST / ph2.0 connectors are pre installed.
By default, we set the hold voltage for the MPPT. Therefore, we have three versions with input voltages of 6V, 9V and 12V (corresponding to the working voltage of solar panel 6V / 9V / 12V), which are very suitable for applications with large voltage difference between input voltage and battery voltage.
When the current output capacity of the input power is reduced, the internal circuit of cn3791 can automatically track the maximum power point of the solar panel. Users do not need to consider the worst case, and can maximize the output power of the solar panel, which is very suitable for the application of solar panel power supply.
Note: if the cn3791 MPPT solar charger is a 9V version, it is necessary to use a solar panel with a working voltage of 9V.
characteristic:
Input voltage: select the corresponding module (6V / 9V / 12V) according to the nominal voltage of solar panel
Output voltage: nominal 3.7V full junction voltage 4.2V lithium battery charging management
Interface: 2pin ph2.0/jst
Maximum power point tracking function of solar panel
Complete charging management of single lithium battery
The charging current can reach 2A
PWM switching frequency: 300kHz
Constant voltage charging voltage: 4.2V ± 1%
Constant current charging current is set by external resistance
Trickle charge the deeply discharged battery
Automatic recharging function
Charging status and end of charge status indication
Soft start function
Over voltage protection of battery terminal
Working environment temperature: - 40 ℃ to + 85 ℃