Three hours and 47 minutes is a good result for any laptop, but is particularly good for one costing less than £500. It marginally beats the similarly-priced Samsung R522, but the more expensive HP has them both beaten.
Over four hours of low intensity use is another excellent result.
Two hours and 21 minutes at 100 per cent brightness is long enough for most films and by reducing the brightness you could squeeze closer to three hours of DVD viewing.
Score in detail