// Battery Connectors

18650 Battery Holder 2S

2S 18650 holder connects two 18650 cells in series for 7.2V to 8.4V nominal output. Used in portable power tools, LED drivers, and DIY battery systems requiring higher voltage than a single cell.

// Specifications

Standard

18650 2S series

Cell Count

2 in series

Voltage

7.2V-8.4V

Capacity

Same as one cell in Ah

Use Case

DIY power tools portable devices LED drivers

Output

JST or wire leads

// Pin Reference Table

Pin	Name	Function	Type
1	Positive	Cell 1 positive	PWR
2	Balance	Cell junction balance tap	I/O
3	Negative	Cell 2 negative	GND