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PWM DC motor speed regulator pump continuously variable speed switch module high efficiency 12V-40V 10A

5-series 5S 15A lithium-ion battery 18650 lithium battery charger charging protection board 18.5V 21V battery

2-string 7.4V 4A 18650 lithium battery protection board, dual string protection chip, 8.4V overcurrent surge 4A

3 series 12V18650 lithium battery protection board 11.1V 12.6V anti overcharge and over discharge protection working current 8A

2 strings of 7.4V 8.4V 18650 lithium battery protection board with balanced 20A current

2 strings of 7.4V 8.4V 18650 lithium battery protection board with balanced 20A current

Four strings, four strings, 14.8V 16. Protection board 30A discharge with balanced 18650 battery protection board

2-string 7.4V18650 lithium battery protection board 8.4V lithium battery protection board 13A working current 20A current limit

2-string 7.4V lithium battery protection board 8.4V overcharge and over discharge polymer protection board 8A current 15A current limit

2-string 7.4V18650 lithium battery 8.4V polymer lithium battery 8A working current 16A current limiting protection board

5-string 18.5V21V electric tool solar lighting 18650 dedicated lithium battery protection board BMS

14.8V18650 lithium battery protection board, 4 strings, 16.8V overcharge, over discharge, short circuit protection, 20A current limiting protection...