Dale takes a look at the Dell Inspiron 15 7000, not the lowest spec £899 model, but the slightly more expensive £1099 version ...

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For the Inspiron 7000 2-in-1, Dell is promising up to 8.5 hours of battery ... Larger versions of the Inspiron 7000 will start at $949 and $1,049, for the 15- and 17-inch versions, respectively.