Key Features

3350mAh nominal capacity optimized for long runtime
4.87A maximum continuous discharge rating
Heat Resistance Layer (HRL) for enhanced internal safety
Button top design for compatibility with spring-contact devices
Engineered for long cycle life and stable voltage delivery

Overview

The Panasonic NCR18650B is a high-capacity lithium-ion rechargeable cell designed for applications that prioritize extended runtime and dependable energy delivery. Featuring a 3350mAh nominal capacity and a conservative continuous discharge rating of 4.87A, this cell emphasizes longevity, safety, and efficiency through Panasonic’s advanced electrode and thermal protection technologies.

Applications / Uses

Rechargeable battery pack assemblies
Portable power storage systems
Low to moderate current electronic devices
Backup power solutions
Energy-efficient battery builds

SPECIFICATIONS

Manufacturer	Panasonic
Model	NCR18650B
Size	18650
Positive Terminal	Button Top
Nominal Capacity	3350mAh (typical)
Continuous Discharge Rating	4.87A Maximum Continuous
Nominal Voltage	3.6V
Maximum Voltage	4.2V
Discharge Cut-Off Voltage	2.5V
Protected	No
Rechargeable	Yes
Approx. Dimensions	18.63mm × 67.18mm
Approx. Weight	47.5g
Data Specification Sheet	Panasonic NCR18650B Datasheet

18650 Button Top Batteries | High-Performance Unprotected Cells

Panasonic NCR18650B 3350mAh 4.87A Battery - Button Top