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Efest 21700 4000mAh 30A Flat Top Li-ion Rechargeable Battery

Efest 21700 4000mAh 30A Flat Top Li-ion Rechargeable Battery - FrenzyFog
Regular price
Sale price
1455000 lira $15.00
Due to more and more applications, the 21700 battery size is becoming a very popular cell and, as intended, is already replacing the 18650 batteries in many areas.
The high current cell is approved with a load of max. 30A constant and pulse load up to 45A.

4000mAh and 30A discharge current, Efest 21700 Li-Ion battery 

High current cell designed for power tools, garden tools and high current drain applications.
Best suited for industry, model making, battery carriers, torches, drones etc.
The cell has been encapsulated by Efest with a durable heat shrink tubing and provided with necessary ratings to ensure more safety in use.

Capacity 4000mAh
Minimum capacity 3900mAh
Rated voltage 3.6V - 3.7V
Charging end voltage 4,2V ± 0,05
Final discharge voltage 2,5V
Max. discharge current (constant) 30A
max. discharge current (pulse) 45A
Protection electronics BMS none
Positive pole 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 instructions:

Lithium cells may only be operated with protective electronics!
Please note that lithium cells may only be used by authorised specialist personnel.
Incorrect handling or short-circuiting can lead to fire or explosion.

Further characteristics:

Lithium-ion batteries are thermally stable and are not subject to any memory effect.
They work on the basis of lithium and are characterised by a high energy density.