Speras 18650 3400mAh USB Rechargeable Li-ion Battery R34

The R34 cells are power-packed with 3400mAh rated capacities, and offer good discharge rates for keeping up with your high powered flashlights. Rest easy knowing that you and your favorite devices are safe from accidents, these R34 3400-18650 batteries come with overcharge, over-discharge, and overheating protection thanks to the built-in PCB (protection circuit board). Specifications: Model R34 Capacity 3400mah Powered 12.58 WH Voltage 2.8V–4.2V Cell LG Cell Size φ18.6*70.5mm Net Weight 48.2g/1.70 Oz Rechargeable YES  (USB) Brand SPERAS      ***Price Per Battery***   *** WARNING *** All users must have appropriate understanding of lithium-ion batteries before purchase. Use caution when working with and using lithium-ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for an