>Lithium-Polymer technology >Three cell rechargeable bay battery that operates and recharges in Ultrabay >Extended unplugged usage time >Output voltage: 10.8 V dc (nominal) >Battery Performance Amp-Hour: 2.7Ah >Battery Performance Watt-Hour: 29Wh
Note: When operating on ac power, the system battery will be recharged first, then the Ultrabay battery.