Dell decided to change things up for their latest revision of their consumer 17-inch laptop. Rather than focusing on high performance which has been typical of most larger laptops, they opted to try and offer longer running times. There are two primary ways that this can be achieved, lower power components or larger batteries. Which method did Dell opt to take and did they succeed at making it something that consumers won't necessarily notice in either usage or size and weight? Find out in my review of the Dell Inspiron 17R 5721 laptop.