Samsung INR21700-40T

Capacity: 4000mAh
Rated Voltage 3.6V - 3.7V
Charging cycle termination voltage 4.20V ± 0.05V
max discharge current: 35A
Do not discharge deeper than 2.5V
Plus pool: Flat top
Chemistry: Li-ion
Protection circuit: Without
Diameter: 21mm
Height: 70.1mm
Weight: 67g

Note: Lithium cells may only be operated with protective electronics!
Safety note:
Please note that lithium cells may only be used by authorized specialist personnel.
Incorrect handling or short-circuiting can result in fire or an explosion. With the purchase of our lithium batteries, you automatically confirm that you only use our cells properly.
This includes professional handling and processing of the cells, as well as proper storage. Batt Energy e.K. assumes no liability for damage to persons or property caused by improper use or unauthorized use of the items.