Key Features
- 50A High-Output Performance: Built for extreme power delivery in professional systems.
- 4500mAh Capacity: Optimized balance of energy density and discharge capability.
- Flat Top Industrial Cell: Ideal for welded packs and OEM battery assemblies.
- Samsung SDI Manufacturing: Trusted quality from a global lithium-ion leader.
- Unprotected for System Control: Designed for use with external protection and BMS solutions.
Overview
The Samsung INR21700-45T is a premium high-drain lithium-ion battery engineered for commercial, industrial, and advanced consumer applications. Delivering an exceptional 50A continuous discharge, this cell is purpose-built for systems that demand maximum power, efficiency, and reliability when integrated into properly protected battery packs.
Applications / Uses
- Commercial UAV and drone platforms
- Electric vehicle battery modules
- Industrial power tools
- Energy storage and backup systems
- OEM and R&D battery development
SPECIFICATIONS
| Manufacturer: | Samsung SDI |
| Model: | INR21700-45T (45T) |
| Size: | 21700 |
| Positive Terminal: | Flat Top |
| Nominal Capacity: | 4500mAh |
| Continuous Discharge Rating (max): | 50A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Discharge Cut-off Voltage: | 2.5V |
| Protected: | No, unprotected |
| Rechargeable: | Yes |
| Approx. Dimensions: | 70.5mm x 21.35mm |
| Approx. Weight: | 72.0g |
Samsung INR21700-45T Data Specification Sheet
⚠ 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.
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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.