Boosts Converter Step Up Power Module Charge Discharge Module for 4.2V Battery

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge9971

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge6447

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge3790

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge2956

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge8004

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge6536

3S 12V 18650 Lithium Battery Board 11.1V 12.6V Overcharge Over-Discharge3559