Welcome to a Biomedical Battery specialist of the DELL Laptop Battery
Ultrabooks dominate the laptop landscape, with hundreds of machines available that are slim, light and fast enough to include one of Intel’s prestigious stickers beside their keyboards. Dell’s Latitude E7440 is designed for business rather than pleasure, and its £1,504 price suggests this machine – which slots inside Dell’s Latitude 7000-series with battery like DELL 34GKR Battery, DELL F38HT Battery, DELL G95J5 Battery, DELL 451-BBFY Battery, DELL PFXCR Battery, DELL T19VW Battery, DELL 909H5 Battery, DELL 451-BBFV Battery, DELL Latitude E7440 Battery, DELL Latitude E7420 Battery, DELL 3RNFD Battery, DELL Latitude E7450 Battery – will only fit in the swankiest of boardrooms.
This isn’t the only laptop intended for the office, though. The Sony VAIO Pro 13 is impossibly slim and light, and the Lenovo ThinkPad X1 Carbon brings a famous business brand to the table and is soon to be updated with the X1 Carbon 2014 model. Sony’s machine is much cheaper than the Latitude – but the ThinkPad is more expensive. Is the E7440 the perfect man in the middle?
The Latitude isn’t clad in eye-catching brushed metal and doesn’t taper to a millimetre-thin tip, but that doesn’t mean it’s got ugly, function-over-form design.
The base uses dark, powder-coated aluminium that feels comfortable and looks polished, the wrist-rest is finished with black soft-touch material, and the lid shines thanks to silver-coloured metal. The only show of excess comes from the brushed aluminium used for the hinge.
Business machines need to be sturdy, and the Latitude didn’t disappoint. It’s built using what Dell calls a “tri-metal chassis”, which is an underlying frame made from anodised aluminium, magnesium alloy and steel. It works: we barely moved the wrist-rest, the base wouldn’t budge, and the lid only flexed a little when twisted. It’s as good as the Lenovo, and stronger than the flimsy Sony.
The Latitude includes a removable 47Wh battery, but there are no options to fit this machine with larger units. At least it’s possible to buy secondary 47Wh batteries, which cost £107. If that’s a little too much, then 34Wh batteries are available for £90.
The Dell lasted for six hours and four minutes in our PowerMark test. It’s a reasonable score that’s an improvement on the Lenovo, but it’s not able to topple the six hours 30 minutes of the Sony VAIO Pro 13 – and it can’t match the longevity of the MacBook Air, either.
We plugged the laptop back in and measured the battery after thirty minutes on charge. The Dell filled 31% of its power pack during this time, which isn’t far behind the Sony but a long way behind the Lenovo, which has a speedy charging system that charges up to 77% in just 30 minutes.
The Latitude excels in several important areas. Its components are the match of its rivals, the screen has a high-resolution, great brightness and a matte finish, and it’s got excellent ergonomics and connectivity. It’s all contained inside a chassis that’s one of the sturdiest on the market – a key attribute for a business machine.
The screen’s mediocre colour accuracy means the panel doesn’t have the all-round quality of the Sony, though, and its battery didn’t last quite as long as the VAIO. Lenovo’s machine has a better keyboard and trackpoint.
The price, too, is a sticking point. The Dell is around £500 more expensive than the flimsier Sony, and the ThinkPad isn’t much pricier – but, if we craved a high-quality keyboard, we’d pay the difference.
It’s a three-way battle for the title of “best business Ultrabook”, and the Dell is a top contender – anyone who buys this machine will not be disappointed. Examine your priorities before you take the plunge, though; the Latitude is a powerful, well-made all-rounder, but the lighter Sony has a superior screen, and the Lenovo has a slightly better keyboard.
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