Compatible devices (11)
Samsung 40T INR21700 4000mAh 35A Li-Ion battery 3.6V - 3.7V.
Developed for applications such as power tools, impact drills, impact wrenches and all other applications with very high current draw and moderate capacity.
With more and more applications, the 21700 size is becoming very popular and is already successfully replacing 18650 batteries in many areas.
The Samsung INR 21700-40T is a high-drain cell with 4000mAh. It can be used with a constant load of 35A and even up to 45A with 80° temperature control. A pulse current of 70A is realistic for this cell.
Technical data of the Samsung INR21700-40T
| 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) | 45A with cut-off at 80° |
| Max. discharge current (constant) | 35A without cut-off |
| Max. discharge current (pulse) | approx. 70A |
| Protection electronics BMS | none |
| Positive pole | flat (flat top) |
| Diameter | 21.15 mm ± 0.15 mm |
| Height | 70.15 mm ± 0.2 mm |
| Weight | 70g ± 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, qualified personnel.
Incorrect handling or a short circuit can lead to fire or explosion.
Further features:
Lithium-ion batteries are thermally stable and have no memory effect.
They are lithium-based and have a high energy density.