Power your DIY builds easily with this Single 18650 Battery Holder Case. It’s a simple and reliable way to mount and connect a single 18650 Li-ion battery (3.7V nominal) in electronics projects. The holder features strong spring contacts for a secure fit and includes pre-attached lead wires—a red positive (+) wire and black negative (–) wire—so you can connect it quickly to your circuit, switch, or power module.
This battery holder is ideal for portable projects such as Arduino/ESP32 sensor nodes, small robots, LED lighting, test rigs, and IoT devices. Use it with a proper charging/protection circuit (recommended for Li-ion safety) when building rechargeable systems.
| Item | Details |
|---|---|
| Battery Type | 1× 18650 Li-ion cell |
| Nominal Voltage | 3.7V (single cell) |
| Output | Red (+) and Black (–) lead wires |
| Material | Black plastic |
| Mounting | Holder body with contact springs |
Note: Battery not included. For rechargeable projects, use a Li-ion protection/charging module (e.g., TP4056 with protection) to prevent overcharge/over-discharge.
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