Packard Bell EasyNote TJ65-AU-010UK - 15.6in Laptop - Battery Performance

The EasyNote leads the pack, with Samsung's R522 falling behind slightly because of its more power-hungry Core 2 Duo CPU.

As the screen is usable at below 40 per cent, you can easily squeeze over four hours of light usage from the TJ65.

Again, considering 100 per cent brightness isn't required, anything but the lengthiest films won't pose a challenge.