Model: SLC-8800B Capacity: 2200mah Cell type: Lithium Cell Input: DC18.5V 2500 mah Output: DC16.8V 2500 mah USB 5V 500mah Model:SLC-8800B universal battery formobilephone/ PSPetc whice is the very convient charger for all electronic products.We also call it external battery,emergency charger, back up battery, mini emergency charger, mobile phone battery charge