Fukuda ECG Machine Battery FX-7540 Product Description Model FX-7540 Battery Type Rechargeable Li-lon Battery Voltage 9.6V Capacity 3800m ah Batteries core brand PRAY-MED Warranty 12 months Product Overview 9.6V 3800mAh Ni-MH medical replacement battery, OEM part number T8HR4/3FAUC-5887, designed for Fukuda FX-7540 electrocardiograph. Cross compatible with FX-7500, FCP-7541 and FX-7542 ECG machines. It serves as a premium substitute for the original battery pack to guarantee