Lithium-ion cells

18650 and 21700 lithium-ion cells for battery projects, e-bikes and cordless tools.

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  • Samsung 25R 18650 battery cell

    Samsung 25R 18650 cell – 2500 mAh, 20 A
    3.29 CHF Add to basket
  • -14%
    Samsung 35E 18650 battery cell

    Samsung 35E 18650 cell – 3450 mAh, 8 A
    Original price was: 2.89 CHF.Current price is: 2.49 CHF. Add to basket

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Lithium-ion cells for battery packs

This category contains 18650 and 21700 cells for building or restoring battery packs. Always check chemistry, permissible current and dimensions before use.

Common applications

  • E-bike and power-tool batteries
  • Custom packs and diagnostic projects
  • Power banks and lighting where the design allows

Working with lithium-ion cells requires suitable knowledge and protective measures. Use compatible equipment and avoid soldering directly onto a cell.