INR21700S
INR21700S

INR21700S

Regular price £7.69 £0.00

We obtained this cell by going directly to the factory. This cell is commonly found under many re-wrapped 21700 cells, including the Vapcell 21700 3750mAh/24A cell.

By going directly to the factory - we can offer these cells at a cheaper price than all the re-wrap companies. 

This is not an 18650 cell, this cell is the new 21700 form factor. 

Fogstar will always provide a case for storage and protection, as well as safety information to protect our customers. 

We recommend our customers fully charge cells before first use, using a dedicated battery charger rated for lithium-ion cells. Our selection can be found here. 


 Specifications: 

  • Model: INR21700S
  • Country of Origin: China
  • Chemistry: INR.
  • Max. continuous discharge current: 24A
  • Nominal capacity: 3750 mAh
  • Nominal voltage: 3.6 V
  • Discharge end voltage: 2.5 V
  • Charging voltage: 4.20 +/- 0.05 V
  • Standard charging current: 1.5 A
  • Protection: Not Protected (Flat-Top)

Safety, storage and disposal

Lithium-ion (Li-Ion) Cells can be dangerous if used improperly. By buying Li-ion batteries from Fogstar, the buyer assumes all associated risks.

  • Always use a battery charger that is rated for Li-ion cells
  • Batteries should never be left charging unattended
  • Batteries should never be loose in pocket or bag (use case provided)
  • All lithium batteries have a cycle-life, however, a battery should be replaced every 2 years - whichever comes first.
  • Never continue to use a battery with a broken PVC wrap.
  • Never completely discharge batteries
  • Do not expose to extreme heat

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