UDSKNV[KSL MPPT Solar Charge Control Board Module 2.5A with 5V/2.1A USB Output, Works for Single or Parallel 3.7V-4.2V Battery Systems
UDSKNV[KSL
Supports 5V-18V (10W-30W) solar panel input with reverse polarity and backflow protection 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 MPPT technology for higher charging efficiency
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