Key Features

• 2500mAh nominal capacity optimized for mid-power applications
• 20A maximum continuous discharge for sustained current delivery
• Stable INR lithium-ion chemistry for consistent performance
• Flat top design suitable for battery pack assembly
• Widely used cell with proven reliability and availability

Overview

The Samsung 25R (INR18650-25R) is a well-established 18650 lithium-ion battery designed to deliver a dependable balance of capacity and output. With a 2500mAh nominal capacity and a 20A continuous discharge rating, this cell is engineered for mid to high-power applications requiring stable energy delivery and long-term consistency.

Applications / Uses

• Mid to high-power battery pack assemblies
• Electric tools and equipment
• Portable power storage systems
• High-drain electronic devices
• Custom energy solutions and projects

SPECIFICATIONS

Manufacturer	Samsung SDI
Model	INR18650-25R
Size	18650
Positive Terminal	Flat Top
Nominal Capacity	2500mAh
Continuous Discharge Rating	20A (Max Continuous)
Nominal Voltage	3.6V
Maximum Voltage	4.2V
Discharge Cut-Off Voltage	2.5V
Protected	No (Unprotected)
Rechargeable	Yes
Approx. Dimensions	18.33mm × 64.85mm
Approx. Weight	43.04g
Associated Names	25R5, 25R6, 25R M, 25R8
Data Specification Sheet	Samsung 25R Datasheet