8HR-4/3FAUPC is a rechargeable battery, after charging is 9.6V,

Battery TYPE: for FDK 8HR-4/3FAUPC Ni0-MH battery

Battery Voltage: 9.6V 

Battery Capacity: 4500mAh 

Battery Size: 72mm* 67mm * 36mm.

Battery performance: Ni-MH rechargeable battery Compatible models：High quality replacement battery for MB4000，E5503-07E-001，MB4000a,CNC Machine.

Package included: 1 Pcs 8HR-4/3FAUPC battery pack