Key Features
- 3350mAh nominal capacity for extended runtime
- PCB-protected design for enhanced operational safety
- Button top terminal for devices requiring raised contacts
- Heat Resistance Layer (HRL) improves thermal stability
- Designed for long cycle life and charge retention
Note: This is a button top protected 18650 battery which is longer than a standard flat top unprotected 18650 battery.
Overview
The Panasonic NCR18650B is a high-capacity, PCB-protected lithium-ion battery designed for applications that prioritize runtime and safety. With a nominal capacity of 3350mAh and controlled discharge output, this cell delivers dependable energy while benefiting from Panasonic’s advanced internal safety technologies.
Applications / Uses
- High-performance flashlights
- Portable power banks
- Rechargeable electronic devices
- Battery-powered instruments
- Low-to-moderate drain energy systems
SPECIFICATIONS
| Manufacturer | Panasonic |
| Model | NCR18650B |
| Size | 18650 |
| Positive Terminal | Button Top |
| Nominal Capacity | 3350mAh (typical at 25°C) |
| Continuous Discharge Rating | 4.87A (5A PCB limit) |
| Nominal Voltage | 3.6V |
| Maximum Voltage | 4.2V |
| Discharge Cut-Off Voltage | 2.5V |
| Protected | Yes (PCB) |
| Rechargeable | Yes |
| Approx. Dimensions | 18.90mm × 69.41mm |
| Approx. Weight | 48.1g |
| Data Specification Sheet | Panasonic NCR18650B Datasheet |
⚠ Important Safety Warnings
While this battery is equipped with built-in protection circuitry to help prevent overcharging, over-discharging, and short circuits, improper handling or misuse can still result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury or property damage. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Intended Use: This battery is designed for use in flashlights, headlamps, and similar devices that require a button top configuration. Ensure compatibility with your device before use.
- Protection Circuit Limitations: While the protection circuit provides additional safety, it cannot prevent damage caused by misuse, including exposure to liquids, extreme heat, or physical damage.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects (e.g., keys, coins, tools) that can cause a short circuit. Do not store loose batteries in pockets, bags, or other uncontrolled environments.
- Inspection: Do not use if the battery is dented, leaking, bulging, or if the outer wrapper or button top is damaged.
- Charging: Use a smart charger specifically designed for button top protected batteries. Do not exceed the battery's voltage and current specifications. Never leave the battery unattended while charging.
-
Prohibited Activities:
- Do not expose the battery to water, fire, or high heat.
- Do not modify, puncture, crush, or attempt to disassemble the battery.
- Do not use the battery if it becomes unusually hot during use or charging.
- Emergency Response: If the battery overheats, emits smoke, or shows other signs of failure, stop using it immediately. Move the battery to a safe, non-flammable surface (e.g., sand or concrete) and follow emergency protocols.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.