we supply lithium-ion cylindrical 18650 battery cells,fresh bare, featuring good performance and bottom prices. model: samsung sdi icr18650-26a nominal capacity : 2,600mah nominal voltage : 3.7v dimension : d 18.25mm, h 65.0mm charge method : constant current, constant voltage (4.2v) max. charge current : 1cma (2,600ma) max. discharge current : 2cma (5,200ma) * 1 : nominal capacity : 0.2c, 2.75v cut-off : average discharge capacity. * 2 : nominal voltage : 0.2c, 2.75v cut-off : average discharge voltage. charging time : standard : 3hrs, rapid : 2.5hrs discharge temperature : -20¡ãc ~ +60¡ãc weight (approx.) : 48g features: stable and flat discharge voltage. outstanding discharge properties and storage capability. applications : various portable devices.