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