As a years' professional battery and chargers manufacture,we have rich experience in phone battery making. Battery BP-6MT iscompatible for NOKIA NokiaE51 N81 8G N82. Our rechargeable mobile phone battery features: 1)Original li-ion battery cell ensures high quality ,large capacity(980mAh),long cycles life(more than 500times). 2)Double IC and NTC PCB to offer over-discharging,over charging,over current and short-circuitprotection. 3)Safety and stability:undergose drop testing,smash testing and acupuncture testing to ensure no fire and explosion when breaking 3)No memory accumulation,full charging every time 4)Guarantee time:one year In addition to our own brand products,we also offer OEM service for you! Contact us now,to enjoy our excellenct sevice,high quality product,competitive price and the shortest lead time!