Lenovo's ThinkPad T440 packs dual batteries, runs up to 17 hours

The new Thinkpads will be available worldwide in September

Lenovo has introduced the ThinkPad T440, a laptop that comes with two batteries to provide up to 17 hours running time, the company said Tuesday.

The PC maker also introduced the ThinkPad X240, which also packs two batteries and gives up to 10 hours battery life.

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Both product lines have one replaceable battery and one internal battery that can't be replaced. The replaceable battery can be changed without powering down, since the internal battery keeps the laptop running, Lenovo said.

The T440 has a 14-inch screen and starts at $899, while a similar, lighter model, the T440s, starts at $1,049. The laptops come with a choice of touch- or non-touch screen, both high-definition, and the OS options include Windows 8 or 7, Lenovo said. The laptops will be available worldwide starting in September.

The T440 and T440s both have an internal 3-cell battery, and a choice of a 3-cell or 6-cell replaceable battery that attaches at the base. The laptops are lighter than their predecessors despite having two batteries, according to Lenovo.

The T440s weighs 1.54 kilograms, compared with 1.76-kilogram for the existing T430s. It's made partly from carbon fiber, making it lighter than the new T440, which weighs around 1.8 kilograms. Both new models are 21mm thick, an improvement from the T430s, which are 26mm thick.

The laptops run Intel "Haswell" Core processors. They come with up to 1TB of hard-drive storage or a 512GB solid-state drive (SSD), and up to 12GB of RAM. Ports include VGA, Mini-DisplayPort, mini-SD, USB 3.0 and Ethernet. The touchpad has been redesigned, though the red trackpoint navigation button within the keyboard has been retained.

The X240 has a 12.5-inch screen, weighs around 1.34Kg and starts at $1,099. It can be configured with a Haswell processor, 8GB of RAM, and either a 1TB hard drive or a smaller SSD. Lenovo didn't provide a capacity for the SSD. The X240 will become available in September.

Agam Shah covers PCs, tablets, servers, chips and semiconductors for IDG News Service. Follow Agam on Twitter at @agamsh. Agam's email address is agam_shah@idg.com.

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