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Samsung 40T 21700 4000mAh 35A Li-Ion Battery

4.71 out of 5
(7 customer reviews)

Samsung has really hit some “Grand Slams” just in the past couple of years with Li-Ion cells, this Samsung 40T is just one of those examples. What makes this cell so special is it’s ability of having “Maximum Balance” with Very High Capacity and while having Ultra-High Discharging/Drain capabilities without any compromise, this was previously thought to be impossible as you have only so much room in a cell for either Capacity or High Drain, Not both.


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In Stock at KiwiQuads

Ships from our Auckland warehouse
SKU: 1994 Category:


These authentic Samsung cells are some of the highest quality 21700 batteries out there. These batteries are used for many applications.


  • Model: 21700
  • Lithium Ion
  • Nominal voltage: 3.6V
  • Discharge cut-off voltage: 2.5V
  • Nominal discharge capacity: 4000mAh
  • Charge: 1.50A, 4.20V,CCCV 150mA cut-off
  • Discharge: 0.2C, 2.5V discharge cut-off
  • Standard charge: CCCV, 1.50A, 4.20 ± 0.05 V, 150mA cut-off
  • Rapid charge: CCCV, 4A, 4.20 ± 0.05 V, 100mA cut-off
  • Charging time: Standard charge : 180 min / 150mA cut-off Rapid charge: 70 min (at 25 °C) / 100mA cut-off
  • Max. continuous discharge: 15A(at 25°C), 60% at 250 cycle
  • Cell weight: 68.2g
  • Cell dimension: 21.1mm x 70.4mm


  • 1 x Samsung 3.7v 21700 4000mAh Lithium Ion Battery

Additional information


Battery Size

7 reviews for Samsung 40T 21700 4000mAh 35A Li-Ion Battery

  1. 5 out of 5

    Thomas Edwards (verified owner)

    Solid performer and delivery was as quick as it could be, overnight. Thanks and keep up the good work Kiwi Quads

  2. 5 out of 5

    Janice (verified owner)

    Good product and really quick delivery. Good to know we got a service this good locally and cant wait to purchase more products.

  3. 5 out of 5

    Anonymous (verified owner)

  4. 5 out of 5

    Andres G. (verified owner)

  5. 4 out of 5

    Andres G. (verified owner)

  6. 5 out of 5

    Chris (verified owner)

    Great for building 6S packs for long range 7 inch quad flying.

  7. 4 out of 5

    Andres G. (verified owner)

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