Key Features

• 2600mAh nominal capacity for stable, long-duration power
• Protected button top design with integrated PCB
• 5A max continuous discharge (5.2A cell rating, PCB-limited)
• Third-party protection against overcharge, over-discharge, overcurrent, and short circuit
• Extended length design for devices requiring protected 18650 cells

Note: This is a button top protected 18650 battery which is longer than a standard flat top unprotected 18650 battery.

Overview

The Samsung 26J protected 18650 battery is built using an original Samsung ICR18650-26J cell fitted with a third-party button top and protection circuit board (PCB). This configuration provides added electrical protection while delivering consistent 2600mAh capacity for compatible devices. Due to the PCB and button top, this battery is longer than a standard flat top unprotected 18650 and must only be used in devices designed to accept protected cells.

Applications / Uses

• Devices requiring protected button top 18650 batteries
• Flashlights and portable lighting systems
• Battery packs with length tolerance for protected cells
• Low-to-moderate drain electronics
• Backup and emergency power applications

SPECIFICATIONS

Manufacturer	Samsung SDI Energy Malaysia (Cell)
Model	ICR18650-26J (Protected)
Size	18650
Positive Terminal	Button Top
Nominal Capacity	2600mAh
Continuous Discharge Rating	5A Max Continuous (PCB-limited), 5.2A Cell Rating
Nominal Voltage	3.6V
Maximum Voltage	4.2V
Discharge Cut-off Voltage	2.75V
Protected	Yes, PCB (Third-Party)
Rechargeable	Yes
Approx. Dimensions	18.7mm × 69.7mm
Approx. Weight	46.9g
Country of Origin	Malaysia (Cell), PCB China
Data Specification Sheet	Samsung 26J Datasheet