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With this MPPT CN3791 solar manager for 9V solar panels , you can charge a lithium battery with a nominal voltage of 3.7V.
The maximum charge current can go up to 2A, depending on the capacity of the solar panel, and once the battery reaches 4.2V the battery charge is interrupted.
The output voltage is given directly by the battery.
If you have any questions on this product please feel free to contact us.
*Disclaimer: The images are merely illustrative.
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