3S 12V 18650Lithium Battery Pack MPPT Solar Panel Controller Charging Module
6,50 €
Adapter Module. Wireless module. Step up module. Step down module. Display module. IN + : input positive, IN - : input negative (SOLAR). Dual status indicator light, no battery when the red light flashes green light is always on, charging red light, full of self-stop while the green light.
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