This 2200 mAh Lithium Ion Grade A Non-Recycled Battery features A USB Output and Micro USB Input (Cord Included). Output is 5 Volts/0.8 Amp. Charges Most Phones, MP3 Players And More! Requires Your Phone's Charging Cord To Charge Your Device. Complies with UL. 3.625" L x 0.87" W x 0.87" H