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2S 18650 Lithium Battery Protection Board with Balance

2S Lithium Battery Protection Board HX-2S-A2 (input 9V)

4S 14.8V-16.8V 40A 18650 Lithium Battery Protection Board

7S 25.9V-29.4V 18650 Lithium Battery Protection Board

BATTERY HOLDER FOR 18650 1SECTION