mobile phone battery for Nokia BP-4L The product gets multiple testings, along with charging protection function, OV charging supporting and long standby. It is used raw materials that make the product becomes a higher capacity and stable quality.Besides, the indicators meet the requirements and its protective function is well-appointed.Besides, the indicators meet the requirements and its protective function is well-appointed. 1 :standby time →(A quality) 3--6days 2 :standary voltage → 3.7v 3 :Rechargeable time →>500cycles 4 :battery Net weight →23g/pcs→ lamination pack 8-12g/pcs 5 :Safety and stable 6 :packing → plastic bag lamination pack color box or blister 7 :carton size → QTY/CTN 1000pcs/CTN plastic bag →25*25*30 8 :carton size→ QTY/CTN 500pcs/CTN lamination pack →carton size 33*40*43 We can make most kinds of mobile phone batteries. OEM batteries are also welcomed. For more details of our company and products please feel free to contact us!