Hello all, Just got a new XPS L521X with 8 pre installed but the battery life isn't that great. I am getting mixed responses about if this is the normal battery life (about 25% an hour). I put "powercfg /energy" in CMD and I got this back:

Code:
USB Suspend:USB Device not Entering Selective Suspend




This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.


Device Name Dell Wireless 1901 Bluetooth 
Host Controller ID PCI\VEN_8086&DEV_1E26 
Host Controller Location PCI bus 0, device 29, function 0 
Device ID USB\VID_0CF3&PID_E003 
Port Path 1,5

Code:
USB Suspend:USB Device not Entering Selective Suspend




This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.


Device Name USB Root Hub 
Host Controller ID PCI\VEN_8086&DEV_1E26 
Host Controller Location PCI bus 0, device 29, function 0 
Device ID USB\VID_8086&PID_1E26 
Port Path

Code:
USB Suspend:USB Device not Entering Selective Suspend




This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.


Device Name Generic USB Hub 
Host Controller ID PCI\VEN_8086&DEV_1E26 
Host Controller Location PCI bus 0, device 29, function 0 
Device ID USB\VID_8087&PID_0024 
Port Path 1

Code:
Platform Power Management Capabilities:PCI Express Active-State Power Management (ASPM) Disabled




PCI Express Active-State Power Management (ASPM) has been disabled due to a known incompatibility with the hardware in this computer.

Do any of these things really effect battery life and if so how do I go about fixing it?