Description
This 18650 Lithium-Ion Rechargeable Battery features a Nail Head (button top) positive terminal, ensuring reliable electrical contact in devices with recessed or spring-loaded battery compartments. It operates at a nominal voltage of 3.7V and includes built-in safety mechanisms such as CID (Current Interrupt Device) and PTC (Positive Temperature Coefficient) protection for enhanced reliability and safe operation.
Key Features
- 1000mAh Nominal Capacity: suitable for moderate to high-drain applications
- Nail Head Terminal: raised positive contact ensures reliable connection in spring-loaded or recessed battery compartments
- Nominal Voltage: 3.7V; compatible with standard 18650 applications
- Maximum Discharge Current: 2C (up to 4A); supports moderate to high current draw
- Safety Protection: Equipped with CID (Current Interrupt Device) and PTC (Positive Temperature Coefficient); the PTC acts as a resettable fuse under overcurrent or overheating conditions, while the CID permanently disconnects the cell under overpressure conditions to prevent catastrophic failure
- Low Internal Resistance: Range of 25–48mΩ depending on variant, ensuring efficient power delivery
- International Safety Certifications: Compliant with CB, ROHS, BIS, IEC, KC, TUV, UN38.3, ISO, and CQC standards
- Long Cycle Life: Delivers 300–500 cycles at 0.5C charge/discharge with ≥80% capacity retention
Specification
| Parameter | Specification |
|---|---|
| Nominal Capacity | 1000mAh |
| Nominal Voltage | 3.7V |
| Maximum Discharge Current | 2C (up to 4A) |
| Standard Charge Current | 0.5C (1000mA) |
| Discharge Cut-off Voltage | 2.75V |
| Internal Impedance | 25–48mΩ (variant dependent) |
| Diameter | 18.3mm |
| Height | 65.0mm |
| Weight | 42.8g – 44.4g ±1g (variant dependent) |
| Terminal Type | Nail Head / Button Top (raised positive terminal) |
| Safety Devices | CID (Current Interrupt Device) + PTC (Positive Temperature Coefficient) |
| Certifications | CB, ROHS, BIS, IEC, KC, TUV, UN38.3, ISO, CQC |
Application
- Flashlights: High-performance torches and tactical lights requiring button-top cells
- Consumer Electronics: Devices with recessed or spring-loaded battery compartments
- DIY Projects: Custom battery assemblies requiring raised positive contacts
- Portable Devices: Bluetooth speakers, handheld electronics, and cordless tools
- Power Banks: Portable charging solutions