With this small portable rechargeable battery pack, users would be able to use their notebooks 3-4 hours more. Extra USB port is used to charge cell phones,mp3/4,ipods,iphones, pda and other 5V devices as well.
Battery type: lithium polymer battery Capacity: 20,000mAh/74W Rated input: 14 to 16V DC Rated output: 12, 16, and 19V DC
USB out: 5V/700mAh Cycle life:after more than 500 circles, the power can still remain 80%. Intellectual protection PCBA: protection for overcharge, over-discharge, overload, and short circuit protection. * Welcome to contact us when you have questions about this product.