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Genuine Samsung 40T 21700 4000mAh 30A Rechargeable Cells Battery UK Seller/Stock

Item

Genuine Samsung 40T 21700 Li-ion cell  - battery cell orders will include a free case/s

100% genuine, UK seller/ UK stock. 24 hour shipping max to the UK.
Please ensure this is the correct size you want and not an 18650 instead.

Battery Specification


  • Brand: Samsung SDI
  • Model: 40T
  • Size: 21700
  • Chemistry: IMR
  • Nominal Capacity: 4000mAh
  • Nominal Voltage: 3.6V
  • Discharge: 30A Max Continuous
  • Positive: Flat
  • Protected: NO, UNPROTECTED
  • Rechargeable: Yes
  • Dimensions: 21mm x 70mm

Safe use, storage and disposal

Lithium-ion (Li-ion/Liion) batteries/cells can be dangerous when mistreated.

  • Never carry loose cells – they should be suitably cased at all times when not in use.
  • Do not short batteries with metallic objects such as keys or loose change.
  • Always use a battery charger designed for Lithium-Ion cells.
  • Never leave a battery charger unattended.
  • Never completely discharge batteries. (The cut off for most cells is 2.8v or 2.5v)
  • Outer wraps and insulator rings should be checked for damage regularly. Replace worn or damaged wraps before continuing use.
  • Do not expose to extremes of heat or cold, or sudden fluctuations between the two.
  • Always dispose of end of life cells at your local WEEE recycling centre.

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