Jnchdghwa As Shown Mppt Solar Charging Controller Board Module 2.5A, 5V/2.1A Usb Output, For Single/Parallel 3.7V-4.2V Batteries
Jnchdghwa
Charges 3.7V Li-ion 18650 batteries ( optional, not required) Battery level indicator activated by button press USB output: 5V/2.1A with low-voltage cutoff protection Supports 5V-18V (10W-30W) solar panel input with reverse polarity and backflow protection MPPT technology for higher charging efficiency, Manufacturer: Jnchdghwa
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