Description
3 × 18650 Lithium-Ion Battery Holder
The 3 × 18650 Lithium-Ion Battery Holder is designed to hold three compatible 18650 rechargeable lithium-ion batteries securely in one compact housing. It is suitable for DIY electronics, robotics, portable power projects, and battery-powered devices.
The holder makes it easier to organize and connect multiple cells in a circuit. Depending on the holder’s internal wiring, the batteries may be connected in series or parallel. A three-cell series configuration (3S) provides approximately 10.8V–11.1V nominal voltage, while a parallel configuration (1S3P) retains the nominal voltage of a single cell and increases the available capacity.
Key Features
- Holds three compatible 18650 cylindrical batteries.
- Compact housing for multi-cell battery projects.
- Helps secure batteries and organize connections.
- Suitable for DIY electronics, robotics, and portable devices.
- Battery insertion and replacement depend on the holder design.
- Wiring configuration and output connections may vary by model.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | 18650 Battery Holder |
| Compatible Battery | 18650 lithium-ion cell |
| Number of Cells | 3 |
| Battery Configuration | Depends on holder wiring |
| Series Output | Approximately 10.8V–11.1V nominal for a typical 3S pack |
| Parallel Output | Approximately 3.6V–3.7V nominal for a typical 1S3P pack |
| Fully Charged Voltage | Up to 12.6V for a typical 3S pack |
| Material | Typically plastic with metal contacts |
| Output Wires / Terminals | Depends on the supplied version |
| Applications | Robotics, electronics, and portable power projects |
Applications
- Robotics and mobile robots
- DIY battery-powered electronics
- Portable power projects
- Sensor and control systems
- LED and lighting projects
- Electronics prototyping
Important Safety Notes
- Batteries are usually sold separately.
- Confirm whether the holder is wired in series, parallel, or has no pre-wired connection.
- Use a suitable battery protection circuit/BMS and charger matched to the actual cell configuration.
- For three cells in series, use a compatible 3S lithium-ion charger and protection system.
- Use matched cells with compatible chemistry, capacity, and condition.
- Check polarity and output voltage before connecting the holder to electronic devices.







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