Tenergy Li-Ion 18650 Cylindrical 3.7V 2600mAh Button Top Rechargeable Battery

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.