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echo "The `uname` Club" (NEW POLL) - Page 80

Poll Results: How long have you been using your current, main installation?

 
  • 24% (50)
    less then a month
  • 23% (47)
    less then six months
  • 14% (30)
    less then a year
  • 24% (49)
    less then three years
  • 13% (27)
    three years+
203 Total Votes  
post #791 of 4043
Does anyone on here run acpi on their laptops? I'm wondering if the output it gives under option -V is reliable as it says that my 6 month old battery has lost 10% of it's capacity and it seems to lose 1% every time I fully charged it.
     
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CPUGraphicsRAMHard Drive
Intel Core m3-6Y30 Intel HD515 8GB 1866DDR3L Micron M600 MTFDDAV256MBF M.2, 256 GB 
CoolingOSOSMonitor
Fanless Win10 Home x64 Kubuntu 16.04 (requires Linux kernel 4.5/4.6) 13.3 inch 16:9, 1920x1080 pixel, AU Optronics A... 
CPUMotherboardGraphicsRAM
AthlonIIX4 640 3.62GHz (250x14.5) 2.5GHz NB Asus M4A785TD-M EVO MSI GTX275 (Stock 666) 8GBs of GSkill 1600 
RAMHard DriveHard DriveHard Drive
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Optical DriveCoolingOSOS
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OSMonitorPowerCase
Bodhi Linux x64 Acer G215H (1920x1080) Seasonic 520 HAF912 
CPUMotherboardGraphicsRAM
N450 1.8GHz AC and 1.66GHz batt ASUS proprietary for 1001P GMA3150 (can play bluray now!?) 1GB DDR2 
Hard DriveOptical DriveOSOS
160GB LGLHDLBDRE32X Bodhi Linux Fedora LXDE 
OSOSMonitorKeyboard
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6 cells=6-12hrs and a charger 1001P MU17 Black 
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post #792 of 4043
Quote:
Originally Posted by Rookie1337 View Post

Does anyone on here run acpi on their laptops? I'm wondering if the output it gives under option -V is reliable as it says that my 6 month old battery has lost 10% of it's capacity and it seems to lose 1% every time I fully charged it.

Lithiums tend to lose life if you let them fully drain or do a full charge. If you look online, optimal charge/use is between 40-80% if I remember correctly. Also, if your battery starts going bad you can sometimes help things even out (pun!) by charging it every time it hits 20-40%. I don't buy the 40% required but I do know if you drain it fully the cells get off in their charges. I don't remember which one but either the - or + side gets out of sync with the other causing a loss of battery life. Essentially you want -/+ to be equal in capacity, you want to chemical reaction to balance. Otherwise the unbalanced side causes the battery to lose "life".

I think it's the - side, as that's the side power comes from. If I'm correct, chargers measure the current output. So if the - side gets "full" before the + side your still going to see a full charge. Unfortunately due to how electricity works, you require that + side to equally balance otherwise it won't pull electrons. If it isn't, it won't pull the electrons causing the charge to not exist giving you a low battery. ugh, I'm too lazy to look up the specifics as well as it doesn't matter. Just stick to not letting your battery go below a certain percent and don't over charge it either (one it hits 80-100 I take it off).

[edit] it might be either side, as it is required to be balanced so the e's flow. Where is my chem book when I want it!!! Anyways, I know enough to go look up papers if I wanted. I just don't want too. =P

[edit] Oh, and generally once you start overcharging the battery the balance gets off worse and worse. You also have other factors but most people shouldn't see their batteries "die" as quickly as they do. It is usually because people either leave them on the charger or let them die completely and then do a full charge. I don't remember why that offsets the cells but I know the answer is either online or in a chem book. lol You can find it if you want.
Edited by mushroomboy - 12/19/12 at 2:43pm
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post #793 of 4043
40% is usually for long term storage tongue.gif

My laptop battery is down to about 63% capacity, earlier this year it was at 80%, and I noticed huge drops the few times I accidentally let it fully drain, about 5-10% each time.

I wouldn't let a battery normally get below 20%, that seems to be when things start turning bad.

Also remember batteries only have a certain amount of charges, which will usually reflect in the capacity later in their life.
post #794 of 4043
Quote:
Originally Posted by Shrak View Post

40% is usually for long term storage tongue.gif
My laptop battery is down to about 63% capacity, earlier this year it was at 80%, and I noticed huge drops the few times I accidentally let it fully drain, about 5-10% each time.
I wouldn't let a battery normally get below 20%, that seems to be when things start turning bad.
Also remember batteries only have a certain amount of charges, which will usually reflect in the capacity later in their life.

I don't think they have a certain amount of charges, I was just reading up. I completely forgot you can re-calibrate the sensors. I think your supposed to do that after so many charges. Lithium batteries don't have the "memory" effect, nor do they suffer from charge numbers if I'm correct. Though over the span of the battery the strips on either +/- end naturally decompose. Causing the batteries life to shorten, as they wear down. Remember, one strip "corrodes" during use and the other gets metal added. Though because of this, during the charge cycle (electrons are moved back to the original side), the strip that doesn't lose electrons now does essentially corroding. Doing this over time causes the battery to lose life, so I guess you could say it has a charge life. Problem is, that's completely unknown and you don't know if the top or bottom will decompose first. So one battery might screw you over with a crappy lifespan. That's the price we pay for mobility.

Yeah, I think it's 20% for charging, cause just reading up I saw that 40% for storage. Doing the full 0-100% though is extremely bad as that's a huge load on the battery. The biggest issue is, it causes excessive heat. That is what causes batteries to do the whole bulging thing. I had to read up on that, and I did it extensively, because my cell phone battery got real bad. Back case wouldn't fit anymore, had to use tape. After reading up, cause this isn't exactly covered in schooling... I thought it would be fine, cause I couldn't think of any reason why it shouldn't. Turns out it's fine as long as temps go back down, I felt dumb after finding that out because I should have put 1+1 together for the bulge effect. Just the expanding gas. The problem is, I guess once it expands you really can't reverse the effect without screwing over the battery. So I just got a new one. Just shows how hot they can get during the charge cycle, and as everyone knows heat is a major player in chemistry.

Honestly, doing some simple reading online about batteries and keeping them "healthy" is good for anyone with a mobile device.
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post #795 of 4043
Thread Starter 
found this on the fedora forums and thought I'd share some christmas fun

Code:
clear; while :; do echo $LINES $COLUMNS $(($RANDOM%$COLUMNS)); sleep 0.1; done | awk '{a[$3]=0; for(x in a) {o=a[x]; a[x]=a[x]+1; printf "\033[%s;%sH ",o,x; printf "\033[%s;%sH*\033[0;0H",a[x],x;}}'
post #796 of 4043
Yeah, I did a lot of reading on it a while back and it's helped for the most part. But some things always seemed a bit contradicting or just plain confusing ( as one place would say one, and the other would say the opposite... who to believe at that point?... battery company A or B? lol ). And yeah, heat definitely kills batteries, an old HP laptop of mine used to overheat like crazy, battery didn't last but a month or so.
post #797 of 4043
Quote:
Originally Posted by Shrak View Post

Yeah, I did a lot of reading on it a while back and it's helped for the most part. But some things always seemed a bit contradicting or just plain confusing ( as one place would say one, and the other would say the opposite... who to believe at that point?... battery company A or B? lol ). And yeah, heat definitely kills batteries, an old HP laptop of mine used to overheat like crazy, battery didn't last but a month or so.

Yeah, until I bothered learning some chem in school a lot never made sense. Even now, it still confuses me. Like you still see some companies put "fully charge before first use" on the phone boxes. Even though ANY good site online tells you that's a myth, which baffles me as to why they would still fill consumers heads with lies. =( Personally I think it goes like this:

Researcher (guy with real creds): "You don't need to charge the battery fully, plus you shouldn't give it a full drain"

CEO: "But I googled it, people say batteries have a memory for charging"

Researcher: "That's old news, not required for new batteries"

CEO: *thinks he knows better, tells the tools who make up the pamphlets to write it anyways*

Consumer gets screwed.

Well, it goes something like that. I have a feeling a lot of the wrong info found by manufacturers pamphlets and the sorts are done because either CEOs are... I shouldn't go there. OR it is a smart CEO and they just want to screw the consumer out of battery life so they use improper information that was relevant but now isn't a good idea. I'd believe either one these days.
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post #798 of 4043
I feel they want the consumer to kill their battery, so they have to buy a new one. Although without control of 3rd party products, there is no guarantee they would go with the product manufacturer... especially if they're more expensive than the 3rd party manufacturer, like they often are...
post #799 of 4043
Quote:
Originally Posted by Shrak View Post

I feel they want the consumer to kill their battery, so they have to buy a new one. Although without control of 3rd party products, there is no guarantee they would go with the product manufacturer... especially if they're more expensive than the 3rd party manufacturer, like they often are...

Maybe that's why replaceable batteries are being phased out too, so they can screw the consumer out of more money?
post #800 of 4043
Thread Starter 
Quote:
Originally Posted by xeekei View Post

Quote:
Originally Posted by Shrak View Post

I feel they want the consumer to kill their battery, so they have to buy a new one. Although without control of 3rd party products, there is no guarantee they would go with the product manufacturer... especially if they're more expensive than the 3rd party manufacturer, like they often are...

Maybe that's why replaceable batteries are being phased out too, so they can screw the consumer out of more money?

sounds more then possible.
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