What is the difference between the 7Ah battery and the 9Ah battery? Why would I upgrade? UPS12580F2 - 12V 10Ah - UPS Battery 96.7 Watts Per Cell - Click here to view.HR1234WF2FR - 12V 9.0Ah - Flammability resistance - UPS Battery 34 Watts Per Cell - Click here to view.UPS12460F2 - 12V 9.0Ah - UPS Battery 76.7 Watts Per Cell - Click here to view.UPS123607F2 - 12V 7.0Ah - UPS Battery 60 Watts Per Cell - Click here to view.UPS - Uninterruptible Power Supply - battery upgrade options: UB1290 - 12V 9Ah - F1 Terminal Battery - Click here to view.Want to upgrade to a higher capacity battery which can offer a longer runtime: You must use your existing wire and cables. Total Height with Terminals: 4.06 inches.DOT 60 classified for easy transportation. Reliable power for critical applications. Exceptional leak resistance even in an upside-down position. Excellent resistance to vibration, shock, chemicals and heat. Our maintenance-free sealed lead acid batteries with absorbed glass mat technology offer outstanding performance withstanding high current output and deep cycling.