This rechargeable nickel metal hydride battery is specifically designed for Medical Ceiling Lifts Product Features: Voltage: 12 Volt Capacity: 2000 mAh Battery Chemistry: Ni-MH Part Number: 12-20-BH4P Medical Ceiling Lifts This battery works for the following models: C-300 Medical Fixed Ceiling Lift C300 P-300 Medical Portable Ceiling Lift P300 642072 Medical ZNG-642072 MB917 HAN-642072 SYSTEM BATTERY 10/VH1800AA Battery C/P 300 Ceiling Lift Battery