Since one cycle counts as a full discharge/recharge, if you do less than one cycle per day, you'll still have plenty of cycles left on your "counter" when the battery dies of old age. You are quite safe to leave it in the computer.
I usually work all day long in my desk with my T
I usually work all day long in my desk with my TabletPC. using the power)
But around 1 year I'm debating with myself if in that situation I keep the Battery in the TabletPC or if I should remove the battery from the TabletPc in order to preserve the number of the cycles and the battery life
Since one cycle counts as a full discharge/recharge, if you do less than one cycle per day, you'll still have plenty of cycles left on your "counter" when the battery dies of old age. You are quite safe to leave it in the computer.
This is correct. Once the battery reaches a certain percent it no longer attempts to charge and the system switches fully to AC power only. Also, there is no more "memory effect" as with older NiCad batteries. I believe any difference in battery life would therefore depend on heat (battery oxidization is accelerated by heat). If you keep your tablet cool, such as with a Targus notebook chill mat, you should have nothing to worry about.
I never remove mine when I am on AC power. I rotate two batteries. Both are still going strong since December of 03.
My strategy is to have more than one battery -- I minimize the use of the newer batteries, storing them in a cool place until needed. One older battery becomes my "primary" battery that stays in the computer most of the time.
The battery in a notebook/tablet is like a UPS system, and is a great defense against power failures, etc. Removing the battery would defeat this advantage, and as others have stated, won't gain you much.
On the other hand, heat is supposed to be one of the biggest enemies of rechargeable batteries, so even if the number of recharges is not relevant, the battery must certain be adversely affected, to some degree, by being in a warm computer all day long. So, I prefer to "sacrifice" one battery as my daily-use battery and make minimum use of the newer batteries.
The biggest disadvantage to Li-Ion batteries is the ~%20 capacity loss per year. There is nothing that can be done about it as far as I can tell. I think this number is two high so if anyone has a better estimate that would be great. I have a media bay battery and internal battery, they both work fine. I get about 5.5 hours using all the toys (on both batteries).
That's actually funny... I have to start a new cult or something around my Clio's battery, since it has been running strong since december 1999, and still holds a ~90% charge :-)
The cult of the everlasting Liion :D
Battery University (http://www.batteryuniversity.com/parttwo-36.htm) is a great battery myth debunker. They would say your ~20% capacity drop estimate would take place across the span of 1,000 cycles. Depending on usage patterns this could be over the duration of several years (or one year if you deep cycle your battery 3 times per day! [:O] ).quote:Originally posted by Fooby12
The biggest disadvantage to Li-Ion batteries is the ~%20 capacity loss per year. There is nothing that can be done about it as far as I can tell. I think this number is two high so if anyone has a better estimate that would be great.
about heat, using power and battery, I keep my machine all the time in the FieldMate case. is it a problem ?
Well now I've heard conflicting reports, I thought to optimize Li Ion battery life and capacity you needed to deep cycle it once a month. Now according to that page, you shouldn't do that?
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