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Battery Life: How Long Does a Battery Need to Last
Posted by gabriel torres in | Nov. 12, 2008 8:00 AM
When the first portable cell phones emerged, they needed a battery as big as a suitcase if you wanted more than half an hour of conversation time. Fortunately technology evolved and this isn’t t...
Hi this is Moshe
Pleas look at my post.
Comments will be appreciated.
http://www.wepc.com/vote/view/dream/7362/William_Gibson_Cyberspace_Machine
I'm concerned about the lifespan of batteries. After a while they tend to last less and less time. Why not having batteries that allow us to open them and replace the cells inside? It's a lot cheeaper than buying a new one. See for example http://www.engadget.com/2005/06/28/how-to-rebuild-your-laptop-battery/
Rip the film onto your hard disc. Dunno how much power it saves but it saves on extra weight.
Anything 6 and above would be great. It might be a little unrealistic, but I hate having to charge my laptop 3 times a day (If it's on all day).
4-5h is a perfect to everything important for your job, school or something else.
I'm going to buy you a Nintendo DS :)
The biggest waste of power these days are:
The backlit LCD;
inefficient CPUs; and
Inefficient OSs that tax the CPU even when the user isn't doing anything with the computer.
There should be no need for economy vs power modes in hardware. A CPU that ostensibly runs as full power can be stone cold by simply executing the HALT instruction whenever an interrupt is serviced and no tasks (that are not waiting for interrupts or messages) remain.
The Amiga was a good example. The processor was properly idle in between keystrokes so long as you weren't running a raytracer in the background.
As for reliving boredom on long flights, I'd be inclined to doodle and draw. A black and white e-paper tablet PC would do me fine.
To me for business use a battery life of 3 hours is the minimum but more like 4-5 is acceptable/ok, 6-8 would be great and anything longer would be incredible. Everyone want more but in practical terms you can often plug into the car to charge it so the amount of time you are away from any means to charge would be something like 4-5 hours but I would really like them to last 6-8 hours.