Description
Winway 3.7V 18650 Li-Ion Battery for DIY, Robotics & Power Applications
The Winway 18650 3.7V Lithium-Ion Rechargeable Battery is a reliable and widely used cylindrical cell designed for DIY electronics, battery packs, robotics, and portable devices. Built using lithium-ion chemistry, it delivers stable voltage output, good cycle life, and efficient energy storage.
Available in multiple capacity variants such as 2000mAh, 2200mAh, 2500mAh, 2600mAh, and up to 3000mAh, this battery allows flexibility depending on runtime and load requirements. It follows the standard 18650 form factor (18mm × 65mm), ensuring compatibility with holders, chargers, and pack assemblies.
Designed for both low and moderate current applications, Winway cells provide consistent performance, lightweight design, and ease of integration into custom builds.
Key Features
- Standard 18650 cylindrical cell (18×65mm)
- Nominal voltage: 3.7V (4.2V fully charged)
- Multiple capacity options for flexible usage
- Stable discharge performance for electronics projects
- Rechargeable with long cycle life (~500 cycles typical)
- Suitable for series and parallel battery pack configurations
Variants – Capacity Options
| Variant | Capacity | Typical Use |
|---|---|---|
| 2000mAh | Entry-level | Toys, small electronics |
| 2200mAh | Standard | DIY & general use |
| 2500mAh | High | Robotics, IoT devices |
| 2600mAh | Higher backup | Power packs, longer runtime |
| 3000mAh | Extended backup | High runtime applications |
Specifications (typical)
- Type: Lithium-Ion Rechargeable Cell
- Model: 18650
- Nominal Voltage: 3.7V
- Full Charge Voltage: 4.2V
- Cut-off Voltage: ~2.75V
- Capacity: 2000mAh – 3000mAh
- Continuous Discharge Current: ~3A (typical)
- Cycle Life: ~300–500 cycles
- Size: 18mm × 65mm
Applications
- DIY battery packs (2S, 3S, 4S configurations)
- Robotics and automation systems
- Power banks and portable devices
- LED lighting and backup systems
- IoT and embedded electronics
Important Safety Notes
- Use with proper BMS/protection circuit
- Charge using Li-ion CC/CV charger (4.2V)
- Avoid short circuit, overcharge, or deep discharge
- Do not mix cells of different capacities or brands