Connector/Pin:-USB to Micro USB Compatible For NOKIA- Lumia/ Asha/ Classic/ XpressMusic/ Supernova/ Navigator/ Slide/ N-Series/ C-Series/ E-Series/ X-Series, SAMSUNG-Galaxy/ Corby II/Champ/ Wave/ Chat, BLACKBERRY/ HTC,SONY-Xperia/ LG-Optimus/ KARBONN-Titanium, MICROMAX-Canvas/ Ninja/ Bolt, MOTOROLA- Atrix/ Defy/ RAZR2/ V8/ RAZR/ V3, SPICE/ LAVA/ INTEX, MP3 Player/ MP4 Player/PSP etc.. Warranty:- 6 Month Warranty against any Manufacturing Defect. Specifications Capacity : 4000mAh. Micro USB Input : 5V-1Amp. (max.) ,USB Out Put : 5V-1Amp. Charging Time : 4 Hours(approx.) on 5V-1Amp