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 |
⚠ Important Safety Warnings
Improper handling or misuse of this lithium-ion battery can result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury, property damage, or death. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Critical Warning: Never carry loose batteries in your pocket, purse, or bag. Loose batteries can come into contact with metal objects like keys or coins, causing a short circuit, which may result in severe burns, fire, or explosion. Always store or transport batteries in a protective case.
- Intended Use: This battery is designed for integration into protected battery packs with a Battery Management System (BMS) or Protection Circuit Board (PCB). It is not intended for standalone use or for e-cigarettes, vaporizers, or similar devices.
-
Thermal Runaway: A chain reaction where heat from a failing battery
causes further overheating, potentially leading to fire or explosion.
- Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
- Prevention: Use a smart charger, avoid damage, and store batteries in a cool, dry place.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects. Never store loose batteries in pockets, purses, bags, or near conductive materials.
- Inspection: Do not use if the PVC wrapper, terminal insulator, or casing is damaged, dented, leaking, or bulging. Continued use could result in failure, fire, or explosion.
- Charging: Use a smart charger specifically designed for lithium-ion batteries and ensure the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
-
Prohibited Activities:
- Do not expose the battery to extreme heat, fire, or liquids.
- Do not short circuit, puncture, crush, or modify the battery.
- Do not charge or discharge beyond the manufacturer’s voltage range.
- Do not dispose of in regular trash—always recycle at approved facilities.
- Emergency Response: If the battery overheats, emits smoke, or swells, move it to a non-flammable surface (e.g., sand or concrete) and stop use immediately. In case of fire, use a Class D fire extinguisher or sand. Do not use water.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.