Key Features

2000mAh nominal capacity optimized for high-current delivery
30A maximum continuous discharge for extreme power demands
Low internal resistance for efficient energy transfer
Flat top, unprotected design for battery pack integration
Engineered for durability under high thermal load

Overview

The Samsung INR18650-20S is a high-power 18650 lithium-ion cell engineered for applications requiring sustained high current output. With a 2000mAh capacity and an impressive 30A continuous discharge rating, the 20S delivers stable performance, thermal resilience, and reliable power under demanding electrical conditions.

Applications / Uses

High-current battery pack assemblies
Power tools and industrial electronics
High-output portable lighting systems
Electric mobility and drive systems
Energy storage applications requiring high discharge rates

SPECIFICATIONS

Manufacturer	Samsung SDI
Model	INR18650-20S
Size	18650
Positive Terminal	Flat Top
Nominal Capacity	2000mAh
Continuous Discharge Rating	30A
Nominal Voltage	3.6V
Maximum Voltage	4.2V
Discharge Cut-Off Voltage	2.5V
Protected	No (Unprotected)
Rechargeable	Yes
Approx. Dimensions	18.2mm × 64.8mm
Approx. Weight	45.7g
Data Specification Sheet	Samsung 20S Datasheet

Unleash the power of high-drain devices with the Samsung 20S 18650 battery, designed for those who demand robust energy solutions. With a substantial 2000mAh capacity and a remarkable 30A continuous discharge rate, this battery is tailored for performance-oriented applications such as vaping mods, high-intensity flashlights, and power tools. Its superior build and reliable output ensure that it stands out in the demanding sphere of high-drain batteries.

High Discharge Rate: Equipped to handle 30A continuous discharge, making it ideal for devices that require a high power output.
Optimal Capacity: Offers a 2000mAh capacity, providing a balanced blend of longevity and performance in a single cell.
Advanced Safety Features: Built with a heat-resistant layer and a nickel-plated stainless steel cathode to enhance safety and durability.
Wide Temperature Range: Functions efficiently across a broad temperature spectrum, from -20°C to 80°C, accommodating diverse operating environments.
Robust Lifecycle: Maintains 60% of its capacity even after 250 cycles, ensuring longevity and consistent performance.

SPECIFICATIONS

Manufacturer:	Samsung SDI
Model:	INR18650-20S (20S)
Size:	18650
Positive Terminal:	Flat Top
Nominal Capacity:	2000mAh
Continuous Discharge Rating (max):	30A
Nominal Voltage:	3.6V
Maximum Voltage:	4.2V
Discharge cut-off Voltage:	2.5V
Protected:	NO, UNPROTECTED.
Rechargeable:	Yes
Approx. Dimensions:	18.2mm x 64.8mm
Approx. Weight:	45.7g
Country of Origin:	Republic of Korea or Malaysia
Data Specification Sheet:	Samsung 20S Datasheet

18650 High-Drain Lithium-Ion Batteries | 20A+ Performance Cells for Flashlights, Power Tools & More