CSB's HR1234W is a 12 volt 9 Ah sealed lead acid battery with F2 Fast-on tab terminals. HR1234W is designed for equipment that require short term bursts of high rate power such as UPS systems. HR1234W will deliver up to 20% more energy output density at 34 watts per cell, or up to 204 watts for 15 minutes to 1.67 volt per cell at 77 degrees in Fahrenheit.