CSB HR1234 F2 12 Volt 9 Amp Hour 34 Watt Sealed Lead Acid Battery HR 1234WF2 is specially designed for high efficient discharge application. Its characteristics are small volume, light weight and high discharge efficiency. It can be used for more than 260 cycles at 100% discharge in cycle service, up to 5 yeas in standby service. 34W @ 15 minute-rate to 1.67V per cell @ 25C (77F) Weight