Description

The Samsung INR21700-50S is a premium high-performance rechargeable lithium-ion battery that combines high capacity with strong discharge capability. With a nominal voltage of 3.6V and a capacity of 5000mAh, this flat top cell delivers excellent energy density along with powerful output.

Unlike standard high-capacity cells, the 50S is engineered to handle higher current loads, making it ideal for demanding applications such as power tools, electric mobility devices, high-performance flashlights, and advanced battery packs. Its flat top design makes it suitable for pack assembly and devices designed for unprotected lithium-ion cells.

Specifications

Brand:	Samsung
Model:	INR21700-50S
Chemistry:	Lithium-Ion (INR / LiNiMnCoO2)
Nominal Capacity:	5000 mAh
Open Circuit Voltage:	4.20 Volt (fully charged)
Nominal Voltage:	3.6 Volt
Nominal Energy:	18.0 Wh
Pulse Capability:	Typically up to 30 A
Max Recommended Continuous Current:	25 A
Storage Temp:	0°C to +25°C recommended
Operating Temperature Range:	Charge: 0°C to +45°C / Discharge: -20°C to +60°C

Features

Key Features:

• High-capacity 21700 lithium-ion battery
• 5000mAh capacity with strong high-drain capability
• 25A continuous discharge rating
• Balanced performance between power and runtime
• Flat top design for battery packs and compatible devices
• Ideal for power tools, EV applications, and high-performance electronics
• Excellent energy density and cycle life
• Rechargeable lithium-ion chemistry

COMPATIBILITY

Also Known As:

• INR21700-50S
• Samsung 50S
• 21700 5000mAh Battery
• 3.6V 21700 Battery
• High Capacity High Drain 21700 Battery
• Li-Ion 21700 Flat Top
• Rechargeable 21700 Battery