first_battery-power-usage Intel Core 2 Duo U9400 testing with a Acer TravelMate 8371 and Intel Mobile 4 IGP on Ubuntu 13.04 via the Phoronix Test Suite. first check of battery-power-usage test: Processor: Intel Core 2 Duo U9400 @ 1.40GHz (2 Cores), Motherboard: Acer TravelMate 8371, Chipset: Intel Mobile 4 MCH + ICH9M-E, Memory: 8192MB, Disk: 500GB Seagate ST9500420AS, Graphics: Intel Mobile 4 IGP, Audio: Realtek ALC269, Network: Realtek RTL8111/8168 + Intel WiFi Link 5100 OS: Ubuntu 13.04, Kernel: 3.8.0-26-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.13.3, Display Driver: intel 2.21.6, Compiler: GCC 4.7, File-System: ext4, Screen Resolution: 1366x768 Battery Power Usage Idle, DPMS Off, Video Playback Milliwatts first check of battery-power-usage test . MIN: 4233 AVG: 4346 MAX: 4453