Description

The Samsung INR21700-40T is a high-performance rechargeable lithium-ion battery engineered for high-drain applications requiring both strong output and reliable capacity. With a nominal voltage of 3.6V and a capacity of 4000mAh, this flat top cell delivers excellent energy density and consistent performance.

Designed for demanding uses such as power tools, electric mobility devices, battery packs, and high-performance electronics, the 40T is known for its powerful discharge capability and dependable cycle life. Its flat top design makes it ideal for battery pack assembly and devices requiring unprotected high-drain cells.

Specifications

Brand:	Samsung
Model:	INR21700-40T
Chemistry:	Lithium-Ion (INR / LiNiMnCoO2)
Nominal Capacity:	4000 mAh
Open Circuit Voltage:	4.20 Volt (fully charged)
Nominal Voltage:	3.6 Volt
Nominal Energy:	14.4 Wh
Pulse Capability:	Typically up to 45 A
Max Recommended Continuous Current:	35 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-drain 21700 lithium-ion battery
• 4000mAh capacity with strong power output
• 35A continuous discharge capability
• Flat top design for battery packs and compatible devices
• Reliable cycle life and stable discharge performance
• Ideal for power tools, EV applications, and high-performance electronics
• High energy density in 21700 format
• Rechargeable lithium-ion chemistry

COMPATIBILITY

Also Known As:

• INR21700-40T
• Samsung 40T
• 21700 4000mAh Battery
• 3.6V 21700 Battery
• High Drain 21700 Battery
• Li-Ion 21700 Flat Top
• Rechargeable 21700 Battery
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