Elemex 21700 40T Li-ion Rechargeable Battery 4000mAh 35A (Solder Tabbed)

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

INR 21700 Battery 40T 4000mAh – Solder Tabbed

The Elemex 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.

Elemex 40T 21700 Battery Cell (U-Type)

Elemex 40T 21700 Battery Cell (U-Type)

Product Features:   

• Nominal Capacity (Ah): 4Ah Max (4000mAh) Min (3900mAh)
• Voltage (V): 3.7 V
• Charging Voltage (V): 4.2 V
• Charging Current (Ah):  2 Ah (2000 mAh)
• Rapid Charging (Ah): 6.0 Ah (6000 mAh)
• Cut-off Voltage (V): 2.5 V
• Rapid Charging Time (min): 70 Minutes
• Energy (W): 14.8 Wh
• Max. Discharge rate (Ah): 35 A Continuous (Recommended)
• Pulse current (Ah): (4 sec.): 70 Ah
• 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): Flat top
• Model: XBU40T
• Made in Korea

Package Includes:             

• Elemex Solder Tabbed INR 21700 40T Li-ion 4000mAh Battery (Genuine Samsung) [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.