I usually work all day long in my desk with my T

[wthor]

It would actually be the Power Management unit that you'd be calibrating by cycling, not the battery itself.

Think of the battery as a balloon - it takes a certain amount of air. The less seldom you blow up the balloon, the more likely you forget how much air it takes to fill it in one puff, so you'd like to recalibrate your knowledge by blowing it up once in a while, just in case :)

( sorry for tha naïve mode explanation.. )

[Fooby12]

Hey, I was looking at the Battery University at the advice of Kupe. Their page on Li-ion Batteries did not confirm the ~%20 loss I have heard, but it does talk about aging. Which was the loss of capacity I was speaking to. There are some other great facts about Li-ion. One of them is that you don't have to deep cycle it once per month. I would suggest you check it out if you have a Li-ion battery. Everything I've seen on the site matches up with what I've seen else where. So, unless everyone is wrong, I think this place is valid. (http://www.batteryuniversity.com/partone-5.htm)

[flecrone]

quote:Originally posted by Crisjovano

about heat, using power and battery, I keep my machine all the time in the FieldMate case. is it a problem ?

If the case keeps the battery warmer, then you can probably expect it to reach the end of its service life more quickly, but by how much is impossible to say.

I figure that you have to look at batteries as consumable items, and judge the balance between convenience, such as having the field case, and possibly shorter battery life. For me, I would chose the added protection provided by the case. Batteries are easier to replace than tablets.

While purely anecdotal, I have noticed some users on another forum for another of my laptops complaining of batteries dieing completely after about year (this particular model tends to get rather hot). I've had mine for almost three years, and while the batteries don't hold as much of a charge as they used to, even the original battery is still useful. That laptop is usually on all day, every day, but is also usually sitting on a cooling pad. I think keeping the computer cooler has also helped the batteries last longer.

[WillAdams]

The really startling thing is how quickly a Li-Ion battery changes at its end of life --- the battery in my Fujitsu Stylistic was working fine one week (worked all the way through Tae Kwon Do class for my kids) then the next week, I hauled it out, and it went from fully charged to auto-shutdown before I had gotten my bearings in Icewind Dale.

William
(who is debating whether to get a new battery or just ``upgrade'' to a Stylistic LT C-500)