Description

The Samsung INR21700-50S 3.6V 5000mAh Li-ion Battery (Button Top) is a premium high-capacity rechargeable lithium-ion battery engineered for applications requiring both exceptional runtime and high power output. Featuring a 5000mAh capacity, this 21700 cell is ideal for power tools, high-performance flashlights, battery packs, portable power stations, electric bikes, medical devices, and other demanding electronic equipment.

Manufactured by Samsung SDI, the INR21700-50S combines outstanding energy density with excellent cycle life and high discharge capability. The button top terminal provides compatibility with devices requiring a button-top 21700 battery, making it an excellent choice for professional, industrial, and enthusiast applications.

Specifications

Brand:	Samsung SDI
Model:	INR21700-50S (Button Top)
Chemistry:	Lithium-ion (INR)
Nominal Capacity:	5000 mAh
Open Circuit Voltage:	4.20 Volt (Fully Charged)
Nominal Voltage:	3.6 Volt
Nominal Energy:	18.0 Wh
Max. Continuous Discharge Current:	25A
Max. Pulse Discharge Current:	45A
Standard Charge Current:	2.5A
Fast Charge Current:	6A
Charge Cut-off Voltage:	4.20 Volt
Discharge Cut-off Voltage:	2.5 Volt
Storage:	Store in a cool, dry place
Operating Temperature:	Charge: 0°C to +45°C / Discharge: -20°C to +60°C
Battery Size:	21700
Dimensions:	21.2mm Diameter × 70.5mm Height
Weight:	Approximately 72g
Terminal:	Button Top

Features

Key Features:

• Premium Samsung SDI rechargeable lithium-ion cell
• 5000mAh capacity for maximum runtime
• High 25A continuous discharge capability
• Up to 45A pulse discharge capability
• Stable 3.6V nominal output
• Button top terminal for expanded device compatibility
• Excellent cycle life and high energy density
• Low internal resistance for demanding applications
• Ideal for power tools, battery packs, flashlights, portable power stations, and e-mobility devices
• Rechargeable hundreds of times using a compatible Li-ion charger

COMPATIBILITY

Also Known As:

• INR21700-50S
• Samsung 50S
• 21700 Button Top Battery
• 5000mAh 21700 Battery
• 3.6V Li-ion Battery
• Rechargeable 21700 Cell
• Samsung SDI 50S

Common Applications:

• Power Tools
• High-Power Flashlights
• Portable Power Stations
• Battery Packs
• Electric Bicycles
• Electric Scooters
• Medical Equipment
• Industrial Electronics