it supportIf you travel a lot and you’re tired of anemic laptop batteries that make you hunt down a power outlet in the airport, you’ll want to know about these new portables that can sustain you from LAX to New York. The four netbooks and four notebooks, arranged in order from longest to shortest battery life, will keep you going for anywhere from 6 and a half hours to nearly 9 hours. With battery power like that, you’ll be able to keep your attention on your work and be very productive on the road.

Lenovo ThinkPad X200
This lightweight laptop offers maximum battery life of 8 hours and 54 minutes when tested with a nine-cell battery option. The battery adds less than a pound to the computer, bringing the total weight to only 3.7 pounds for easy carrying. The nine-cell battery upgrade costs only $50 more. The price for this laptop is currently around $951.

Samsung N110
The Samsung N110 did a stellar job in PC World’s battery tests, lasting 8 hours, 23 minutes on a charge. At 2.7 pounds, this netbook is easy to carry as well. Prices for this model have dropped, putting it around $410.

Lenovo ThinkPad T400
ThinkPads are catnip to business travelers, thanks to their sturdy construction, solid performance, roomy keyboards, and – in the case of the Lenovo ThinkPad T400 – excellent battery life. The nine-cell battery added a bit of bulk but kept us working just shy of 8 hours. The T400 is available online for $1289 and up.

Acer TravelMate 6293
The Acer TravelMate may look a bit drab, but when it comes to long batter life, this one is a winner. In tests, it lasted 7 hours, 57 minutes; and for $999, the price is right too.

Samsung N120
This netbook not only has a great battery life but it also offers a very comfortable keyboard. In PCW tests, the N120 went for 7 hours, 43 minutes on a charge, which is excellent but not quite as good as its netbook sibling, the Samsung N110. The N120 is priced around $410 online.