Motormastor eliminator power pack 400a replacement batteryTHe BOOSTER1 battery is designed to replace The Motomaster Eliminator Power Pack 400A Battery 12V 18A H battery it will replace the 12V 20A H and 12V 22AH but may have a reduced runtime. Please check how many batteries you need before ordering. Most scooters use two of these batteries but some do use four. The BOOSTER1 is designed to replace these capacities of battery 12V 18AH; 12V20AH, 12V 22AH Chemistry Sealed Lead Acid Voltage 12V Capacity 18A H