2-Cell 18650 Li-ion Battery Holder, PCB Mount, 7.4V Nominal
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Prices updated: 13 Oct 2026
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About this product
A PCB-mount holder for two 18650 lithium-ion cells connected in series, giving about 7.4 V nominal (3.7 V × 2). It has four pins, two per cell, so the cells can be wired in other configurations. Suited for battery-powered projects that need a 7.4 V source.
Specifications
- Cell type
- 18650 Li-ion / ليثيوم أيون 18650
- Number of cells
- 2
- Default arrangement
- Series (2S) / على التوالي
- Nominal voltage
- Approx. 7.4 V / نحو 7.4 فولت
- Mounting
- PCB mount / تثبيت على اللوحة
- Pins
- 4 (two per cell) / 4 (طرفان لكل خلية)
Frequently asked questions
Does the holder include battery protection?
The holder only mechanically holds the cells and connects their pins. A series lithium-ion pack should be used with a protection and charging board (BMS) to guard against over-charge and over-discharge.
How do I wire the cells correctly?
Each cell uses two of the four pins. For the standard 7.4 V series arrangement, follow the polarity marked on the PCB and verify it before inserting the cells, because reversed polarity can damage the circuit.
