YOUR ONE STOP BATTERY SUPPLIER! Cameron Sino Technology Limited was founded in 2000 in Hong Kong,We focus our market on battery products which targeting to build up a Battery Supermarket. Compatible Device Model: Maxcom MM131 Compatible Battery Part NO.: Original Specifications: Voltage:3.7V Capacity: 900mAh/3.33Wh Size: 46.20 x 34.00 x 5.60mm Weight：44g Caution: 1.Don't disassemble 2.Don't dispose of in fire or water 3.Don't store above 60 ℃（140℉） Tips Before Purchase Please double confirm the compatible model and original battery part number before you purchase it. If you are not sure how to replace battery, please feel free to send email to us with your battery details or pictures, we will give you free professional suggestion. Your satisfaction is very important to us, if you have any questions, Please feel free to send Eamil contact us, and we will reply within 24 hours.