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Samsung 40T INR 21700 4000mAh 3.7V Unprotected High-Drain 35A Lithium Ion (Li-ion) Flat Top Battery

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Samsung 40T 21700 Battery


4000mAh | 35A High Drain | 250 Charge Cycles

Samsung is always ahead of the game when it comes to high-drain batteries, and the Samsung 40T battery is a shining example of their innovation. This 21700 cell pairs a power-packed 4000mAh capacity with an incredible 35A max discharge rate, making the 40T a top-tier choice for high-drain devices. The li-ion chemistry is completely rechargeable, and offers around 250 charge cycles, allowing you to get the most out of the superb battery. The INR21700-40T outclasses most cells in its size category, so be sure keep this one on your wish list.


  • Brand: Samsung
  • Size: 21700
  • Capacity: 4000mAh
  • Max Discharge: 35A
    (45A w/ 80° temperature cut)
  • Std. Discharge: 10A
  • Voltage: 3.7V
  • Chemistry: Li-ion
  • Terminal: Flat Top
  • Protection: No
  • Charge Cycles: 250+ Cycles
  • Color: Lavender


  • Height: 70.30mm (2.768")
  • Diameter: 21.22mm (0.835")
  • Weight: 70.0g (2.469oz)