Batteries’Running Life
Posted by ecsem1 on Dec 28, 2009
The machines with the shortest battery life tend to be those with desktop processors in them. Conversely, they also have tremendous processing power, so it tends to be a bit of a trade off. However, as they aren’t optimised for mobile working, they eat power VGP-BPS9/S, and they eat it fast, sometimes giving just 70 minutes off a full charge.
Now we come to the battery, which is the bane of the laptop computer user. We’ve already discussed processors, but they have a large part to play in the battery life of a laptop. Going back three or four years, the most you could expect from a single Dell Inspiron 510m Battery, fully-charged laptop battery was two hours of work time, or less if you were taking on processor-intensive work or DVD playback. Now, thankfully, you have a few options.
That’s why such machines are often sold as ‘desktop replacement’ products, rather than laptops. At the time of writing, the clues to look for in the specs are processing power in advance of 2.8GHz, and if you’re buying a Pentium or Celeron based system Acer BATCL50L battery, the lack of the letter M (ie Pentium 4 rather than Pentium M), or no mention that the CPU is mobile-optimised.
Longer battery life comes from chips that form part of Intel’s Centrino technology. The Centrino isn’t actually a processor itself, more a series of technologies designed to optimise battery life and wireless working. However, whenever you come across a Centrino machine Dell Inspiron 1721 Battery, it will have either a Celeron or Pentium processor within it that’s been optimised for portable use. And that means you can expect battery life at best touching the five hour mark.
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