Compatible model: For BenQ-Siemens :M81 For Siemens : CTX65 CXI70 CXO65 S65V SP65 Emoty A31 C65 CF62T CXT65 CFX-65 CXT70 CXV65 CXV70 M65 S65 CX66 CX65 CX70 Emoty M75 A58 CT72 CT75 CV72 CV75 CX75 CXI65 AX72 AX75 C65v C70 C75 CF62 CF75 CFX65 C66 C71 CF63 CT66 CV65 CX70 SK65 S66 S75 C72 C81 SP65 M8 CF65 Part No.: For Siemens : V30145-K1310-X329 EBA-660 EBA-670 L36880-N7101-A110 EBA-760 V30145-K1310-X328 V30145-K1310-X277 EBA-770 V30145-K1310-X289 V30145-K1310-X321 L36880-N2501-A110 L36880-N6051-A103 L36880-N7101-A111 L36880-N6981-A100 Specifications: Voltage: 3.7V Capacity: 750mAh Use:Mobile Phone Battery Size:51.60 x 39.97 x 4.50mm Li-ion Battery Important: 1 100% real capacity and Newest battery.New batteries must be FULLY CHARGED and FULLY DISCHARGED 2 to 3 times, before being FULLY CONDITIONED. 2 We are offering the original quality and 1 year warranty, If you are not satisfied do not leave negative feedback in retaliation for a defective product or something you were not expecting.Pls contact us !!Customer satisfaction is our top priority. 3 W holesale seller are warmly welcomed.If you order mixed models , Pls contact us ahead. Price will be more reasonable! If you can'treadEnglish,ple ase enterourstoretochooseyour country language. Please Note: > The battery must be fully recharged before use. > A temporary short capacity of new battery will be resulted from not used for a long time, it is normal, the total capacity will be reinstated via used for 3-5 times. >New battery When first get