Replacement Battery TypeLi-ion;
Voltage: 7.5V;
Capacity: 2387mhA/ 18.0W h ^^ Compatible P/NG3HTA044H G3HTA020H DAK822470K ^^ Compatible ModelsFor Microsoft Surface Book 1 CR7 13.5" CR7-00005 CR7-00007 Series ^^ DG QualityGrade A cells mitigate the risk of battery leakage and maximize output stability. Built-in circuit protection, enhances safety of usage and extends battery life ^^ DG TIPSFor the initial installation, please reinstall and check the interface fully connected, discharge the battery to 5%(not to 0%) and then charge to 95%, and cycle 3-4 times