A pack of 2 Sinowatt 25SP 18650 batteries. Each battery hasÊa 2500mAh capacity and are built to high specifications and approved for use with vape mods.ÊThe pack of 2 Sinowatt 25SP batteries are compatible with any dual 18650 mod. With a typical capacity of 2500mAh in energy and with up to 20 amps in maximum continuous discharge.