Efest Battery IMR21700, 30A

The 21700 battery size is becoming increasingly popular due to a growing number of applications, already replacing 18650 batteries in many areas. This high-drain cell is rated for a maximum continuous load of 30A and pulse loads up to 45A. It has a capacity of 4000mAh and a discharge current of 30A, Efest 21700 Li-Ion battery.

Designed for power tools, garden tools, and applications with high current demands, this high-drain cell is ideal for industrial use, model building, battery carriers, flashlights, drones, and more. The cell is encased in a durable shrink wrap by Efest and is marked with essential specifications to ensure greater safety in use.

Product information for the Efest 21700 battery with 4000mAh:
Capacity: 4000mAh
Minimum capacity: 3900mAh
Nominal voltage: 3.6V - 3.7V
Charge termination voltage: 4.2V ± 0.05
Discharge termination voltage: 2.5V
Max. discharge current (constant): 30A
Max. discharge current (pulse): 45A
Protection electronics: BMS none
Positive terminal: flat (Flat Top)
Diameter: 21.1 mm ± 0.15 mm
Height: 70.1 mm ± 0.2 mm
Weight: 69g ± 1 g
Charging method: CC-CV

Safety notes: Lithium cells should only be operated with protection electronics! Please note that lithium cells may only be used by authorized personnel. Improper handling or short circuits can lead to fire or explosion.

Additional features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate on the basis of lithium and are characterized by a high energy density.

Delivery includes: 1x Efest IMR21700 - 4000mAh, lithium-ion battery (The battery is delivered in an Efest paper box).

Technical specifications for "Efest IMR21700 - 4000mAh, Li-Ion battery, 3.6V - 3.7V 30A":
Charge current normal/charging time: 0.xx - 2A
Max. charge current/charging time at 4A: up to 4A/3h
Operating temperature charging: 0 °C - 45 °C
Operating temperature discharging: -20 °C - 60 °C.