Samsung 21700 40T Li-ion Rechargeable Battery 4000mAh 35A (Button Top)

21700 Samsung Cell Battery 4000mAh Li-ion 3.7V 35A (Samsung Cells)

INR 21700 Battery 40T 4000mAh – Button Top

The 21700 battery cell, powered by a genuine Samsung INR21700-40T cell, delivers outstanding performance with a typical capacity of 4000mAh and a 35A continuous discharge rate.

Designed for demanding applications, this high-performance lithium-ion cell provides both long runtime and high power output, making it ideal for battery packs, high-drain devices, and energy storage solutions.

Note: Unlike several generic products in the market claiming unrealistic high capacities, we ONLY supply GENUINE and fresh batteries. Each cell is tested before dispatch.

40T 21700 Samsung Cell Battery

Product Features:   

• Nominal Capacity (Ah): 4Ah Max (4000mAh) Min (3900mAh)
• Voltage (V): 3.7 V
• Charging Voltage (V): 4.2 V
• Charging Current (A):  2 A (2000 mA)
• Rapid Charging (A): 6.0 A (6000 mA)
• Cut-off Voltage (V): 2.5 V
• Rapid Charging Time (min): 70 Minutes
• Energy (W): 14.8 Wh
• Max. Discharge rate (A): 35 A Continuous (Recommended)
• Pulse current (A): (4 sec.): 70 A
• Impedance (Ω): 12 milli-Ohms @1KHz
• Weight (g): 70 g (Max)
• Diameter (mm): 21.22 mm (+/- 0.07 mm)
• Height (mm): 70.30 mm (+/- 0.9 mm)
• PCB: No
• Top (positive side): Button top
• Model: INR21700-40T
• Made in Korea

Package Includes:             

• Genuine Samsung 40T Li-ion Battery INR 21700 4000mAh (Button Top) [please select the quantity]

Warning: 

• Never wholly discharge Li-ion 21700 battery (below 2.5V under load).
• Charge fully to 4.2V before first use.
• Never use force to install (insert) a Li-ion battery.
• Do not use old and new battery cells together.
• Use only a high-quality battery charger.
• Do not remove the heat shrink/wrapping cover (it must be used as it is).
• Do not expose to heat, NOT penetrate or modify.
• Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts).
• Keep a battery, not in use in a plastic holder (or any insulating [plastic] container).
• Never charge the battery over 4.25V (another reason to use a high-quality battery charger).
• Do not charge unattended nor overcharge unprotected cells.