Single 18650 battery holders accept the standard 18650 lithium cell (18mm diameter 65mm long) for DIY electronics, flashlights, and battery packs. Available with solder pins, wire leads, or PCB mount contacts.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Positive | Cell positive terminal spring | PWR |
| 2 | Negative | Cell negative terminal spring | GND |