As I have recently bought the Acer Aspire One D257 for myself. The laptop features is good and meet my requirements, but the thing is that the laptop battery does not give proper back up. As I travel a lot and cannot charge the laptop every now and then. So I would like to know how can I extend my battery life as one of my friend suggested me that upgrading to the 6 cell will able to extend my laptop battery life, so would like to know from you all.. So is there anyone who can suggest me how can I extend the battery life in the Acer aspire one D257.