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Nephlyte
Misfortunate One



Registered: 10/11/05
Posts: 1,025
Loc: South Texas
Last seen: 13 years, 8 months
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Just showing off the battery life on my new laptop :flex:
#8301388 - 04/18/08 03:23 PM (16 years, 1 month ago) |
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No photoshop. Its just some weird glitch, it'll stay like this for several minutes after i wake it up from sleep mode.
But its still fun to show off.
-------------------- "To do right is to know what you want. Now when you are dissatisfied with yourself it's because you are after something you don't really want. What objects are you proposing to yourself? Are they the objects you really value? If they are not, you are cheating yourself. I don't meant that if you chose to pursue the objects you most value, you will attain them; of course not. Your experience will tell you that. But success in getting after much labor what you really don't care for is the bitterest and most ridiculous failure." -George Santayana
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Seuss
Error: divide byzero



Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 3 months, 8 days
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Re: Just showing off the battery life on my new laptop :flex: [Re: Nephlyte]
#8301767 - 04/18/08 05:10 PM (16 years, 1 month ago) |
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It has to sample how much the battery drains over time to predict runtime. It takes a few minutes to get enough samples to be accurate. (my guess, anyway)
Hmmm... I don't smell the stench of Mircosoft.
-------------------- Just another spore in the wind.
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Ythan
ᕕ( ᐛ )ᕗ



Registered: 08/08/97
Posts: 18,840
Loc: NY/MA/VT Borderlands
Last seen: 9 hours, 49 minutes
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Re: Just showing off the battery life on my new laptop :flex: [Re: Seuss]
#8302631 - 04/18/08 10:05 PM (16 years, 1 month ago) |
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Seuss
Error: divide byzero



Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 3 months, 8 days
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Re: Just showing off the battery life on my new laptop :flex: [Re: Ythan]
#8302788 - 04/18/08 11:00 PM (16 years, 1 month ago) |
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-------------------- Just another spore in the wind.
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johnm214



Registered: 05/31/07
Posts: 17,582
Loc: Americas
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Re: Just showing off the battery life on my new laptop :flex: [Re: Seuss]
#8302933 - 04/18/08 11:44 PM (16 years, 1 month ago) |
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Quote:
Seuss said: It has to sample how much the battery drains over time to predict runtime. It takes a few minutes to get enough samples to be accurate. (my guess, anyway)
Hmmm... I don't smell the stench of Mircosoft.
i'd imagine it measures change in voltage over change in time, as this is a decent predictor of the proportion of oxidized and reduced species, which gives the battery its power
But, the above prediction is only true for the same temp, the prediction doesn't work if temp is changing faster than the proportions of species (see equation below). So when you start the laptop up it reads V1 at T1, a minute later V2 at T2. Then, since T2 >T1 the V2 >V1, presuming about the same composition of the battery. So the computer actually measures the computer as gaining more battery life while the battery heats up in the first few minutes. After awhile the battery temp stabilizes and the predictions become more accurate.
This may be the first time I've ever found any equation from general chemistry useful for anything at all. 
does the battery life increase over succesive measurements when you first power on the system?
If not there may be other things going on w/ the prediction software
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cheshirect666
Wanderer



Registered: 12/17/07
Posts: 631
Loc: Medford, Oregon
Last seen: 9 years, 3 months
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Re: Just showing off the battery life on my new laptop :flex: [Re: Ythan]
#8302952 - 04/18/08 11:50 PM (16 years, 1 month ago) |
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Quote:
Ythan said:
Calvin and Hobbes fuckin rule i thought i was the only one ive read every last bit of it
-------------------- Not all who wander are lost.
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DieCommie


Registered: 12/11/03
Posts: 29,258
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Re: Just showing off the battery life on my new laptop :flex: [Re: johnm214]
#8303184 - 04/19/08 01:16 AM (16 years, 1 month ago) |
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Digression here, how do you embed a LaTeX equation like that? I assume is a jpeg or something like that?
I asked OTD noobs, but they didnt know. If I want to do that I have to make a PDF using my normal compiler and then do a print screen. There has to be an easier way, and Im sure there is. Do you know what I mean?
edit - oh I see you have it linked to some website
Edited by Qubit (04/19/08 01:45 AM)
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Seuss
Error: divide byzero



Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 3 months, 8 days
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Re: Just showing off the battery life on my new laptop :flex: [Re: DieCommie]
#8303456 - 04/19/08 04:03 AM (16 years, 1 month ago) |
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> how do you embed a LaTeX equation like that?
There are sites online that will translate TeX equations into an image to download. Annoying, but effective. We should probably add latex tags to the code, but efforts are currently working towards tomorrow.
-------------------- Just another spore in the wind.
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Annom
※※※※※※




Registered: 12/22/02
Posts: 6,367
Loc: Europe
Last seen: 1 year, 3 days
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Re: Just showing off the battery life on my new laptop :flex: [Re: Seuss]
#8304295 - 04/19/08 12:18 PM (16 years, 1 month ago) |
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Quote:
We should probably add latex tags to the code, but efforts are currently working towards tomorrow.
In this case it is YOU Not that it will be used very often, but this forum really needs latex equations to be complete, and you know it
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Nephlyte
Misfortunate One



Registered: 10/11/05
Posts: 1,025
Loc: South Texas
Last seen: 13 years, 8 months
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Re: Just showing off the battery life on my new laptop :flex: [Re: johnm214]
#8306722 - 04/20/08 12:00 AM (16 years, 1 month ago) |
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Quote:
johnm214 said:
does the battery life increase over succesive measurements when you first power on the system?
If not there may be other things going on w/ the prediction software
Nah. I think it makes a prediction based on how quickly i'm draining the battery. So, when i wake it from sleep mode, it takes a quick sample of how much power is being drained and its near zero (because it was sleeping) and makes a projection that is totally wrong.
-------------------- "To do right is to know what you want. Now when you are dissatisfied with yourself it's because you are after something you don't really want. What objects are you proposing to yourself? Are they the objects you really value? If they are not, you are cheating yourself. I don't meant that if you chose to pursue the objects you most value, you will attain them; of course not. Your experience will tell you that. But success in getting after much labor what you really don't care for is the bitterest and most ridiculous failure." -George Santayana
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