12.0V, 2000mAh, Ni-MH Battery fits Fresenius, Mcm, P-200, 24WhBattery Fits Models: Mcm, P 200, Vial, Vp1000 Battery Part Numbers: 120024, Batt 110024 Our battery should have the exact dimensions and fitment as the original battery; the fit and finish are checked before dispatch. The replacement battery listed here is developed using the highest quality components. If both your model number and battery number are listed in the product description, you can be almost sure that you are ordering the correct battery.