Key Features

High-capacity 3500mAh cell optimized for long runtime
Protected button top design with integrated PCB
5A continuous output limited by PCB
Enhanced safety protection against overcharge, over-discharge, and short circuit
Extended length compared to standard flat top 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 INR18650-35E protected button top battery is engineered for applications requiring extended runtime and enhanced safety. Featuring a 3500mAh nominal capacity and an integrated protection circuit board (PCB), this cell provides controlled output and safeguards against electrical faults. Its button top configuration and added protection components result in a longer overall length than standard flat top 18650 batteries.

Applications / Uses

Portable power packs
High-efficiency lighting systems
Electronics requiring protected lithium-ion cells
Battery-powered equipment with button top compatibility
Low-to-moderate current energy storage applications

SPECIFICATIONS

Manufacturer	Samsung SDI
Model	INR18650-35E
Size	18650
Positive Terminal	Button Top
Nominal Capacity	3500mAh
Continuous Discharge Rating	5A (PCB Limit) / 8A (Cell Rating)
Nominal Voltage	3.6V
Maximum Voltage	4.2V
Discharge Cut-Off Voltage	2.65V
Protected	Yes (PCB)
Rechargeable	Yes
Approx. Dimensions	18.6mm × 69.8mm
Approx. Weight	50.53g
Data Specification Sheet	Samsung 35E Datasheet

18650 Batteries Front New