Tenergy Rechargeable 18650 Li-Ion Battery, 3.7V, 2600mAh #30049


Batteries and chargers from Tenergy deliver consistent output across sizes, with rechargeables and chargers built for the task. Matched to the standards of Fenix flashlights, headlamps and bike lights, these products combine safe operation with reliability even in adverse conditions.


  • Rechargeable 3.7V Li-Ion 18650 cell
  • Unique patented PCB design prevents voltages outside of 2.5-4.25V
  • High energy density and lightweight
  • Manufactured under ISO9001-200 to assure quality
  • Battery tested by IEC (International Electrotechnical Commission) standard to ensure capacity, quality, and life span
  • Ideal for lighting applications or other devices requiring 3.7V power sources


  • Type: Cell, Li-Ion
  • Model: 18650
  • Capacity: 2600 mAh
  • Voltage: 3.7v
  • Weight: 50g
  • Dimensions: 18.7mm x 69mm