Hey guys, I am a newbie when it comes to batteries ... So I'm not quite sure if 5% battery wear after just a month of use is normal or not. If not what is the normal rate of battery wear for the same period.
Also after quite a bit of research I am still stumped as to whether or not I should keep the A/C plugged in after the battery is fully charged.
I would really appreciate if some people experienced in this matter could help me out. Thanks![]()
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This is a subjective matter some saying yoy dont need to 'manage' the battery while others saying you do. Mine got to 20% wear after about 9 months but now 2 months later since ive been keeping it at about 25% charge with charging turned off (have to turn it off after every reboot) its still at 20% wear so i guess it must help. But like i say a very opinionated matter.
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But since i noticed the wear of 5% I am a bit skeptical about keep the Charger connected all the time
I have at the moment (using Dell's Battery meter option) Switched off Battery Charging (It stops the battery from charging till the next time i restart) - Do you think this might help ? even if the battery were to stay in.
From what I have read : Li-on Battery life seems to largely depend on the temperature of its surroundings, and mine is almost always on the cooling pad and also I've never felt it heat up. -
Thats normal.
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whomever is still under warranty, I did the following (simply because I got pissed)
Use the hell out of your battery, drain every last ounce of it. Drain it until the battery says 5% and shuts down, hit the power button a few times and let it turn on and off (the purpose is to get to as full of a discharge as possible, REMEMBER, do this ONLY if you're still under warranty, because in my case it worked). Plug it in, turn it on and let it charge. In my case, the full discharge brought me back down to 0.00% wear, and after a month or two of usage with the battery alone, I am now at 1% wear.... dissapointed that I am not getting another dell battery but also surprised at how long the battery's lasted so far (4+ hours with brightness up and watching vids). -
My L702x battery wear is 14% at the moment and I have had my computer 8 months. I keep my laptop AC powered at all time when I'm at home, but when bring my laptop to school I notice that the battery wear has increased by a fraction after a few battery cycles.
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glad i'm not the only one elaesar
I'm actually trying to break my battery to get the warranty, usually on dells, their last ounce of energy lasts JUST after your 1yr warranty mark has ended, it was definitely the case for my XPS M1330, and thta thing was a AC outlet queen.
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I'm not sure that deep draining LI ION batteries is healty for their lifespan, as far as I know the first thing to avoid is to discharge the battery under 20%.
See more here How to Prolong Lithium-based Batteries - Battery University -
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did you buy a brand new laptop or an outlet one
i got one off outlet and it came with 5% wear -
My new out of the box showed 4%, after 5 weeks its still at 4%.
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I had 8% wear rate,and i was like maaan, i'm gonna mess up this battery on purpose, i dont want 8% wear! I tried draining it to it's death, then recharged it and it reset back to 0.00%.
Tried it again on 5.6% wear and now I am at 0.8% wear. -
The wear is increasing quite fast, At the moment Hardware Monitor is showing wear of 6%
and the wear seems to be increasing everytime i use the battery and recharge it (I usually use it to about 30% and recharge it back to 99%) ... which is odd because most people suggest to do that to reduce the battery wear.
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Edit : Sorry for double posting -
For those whose battery lost 10% or so charge already, disconnect it from your motherboard and connect it back again. It's mainly a sync issue. (Calibrate it then do it)
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Drain the battery completely, disconnect it from the Motherboard & Recharge it ? Have I got the steps right ? -
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My wear was 4% the day I got the laptop in September 2011. It was 11% last week and now it is at 12%. The thing is I don't even use the battery. It is always plugged in. If I do use the battery even for only five minutes it discharges quickly then if I plug it back in it takes about 30 minutes to charge and then the wear goes up 1%.
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Simply do not abuse deep discharge. -
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Full charge capacity: 73982 mwh
current capacity: 60717 mwh (battery at 82%)
Dont think resetting will effect the physical condition of it. Wear level from what i understand seems permanent. -
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6 Months and mine is at 23% wear
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Sam work your butt off to break that battery ASAP, once that year's over you're in for a heck of an annoyance with the dell quickset telling you "battery dead replace soon" lol. I am currently working on wearing my battery I have right now. It's not agreeing with me so far lol.
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9 months, 10% wear
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All this assumes that these battery wear figures are accurate. I've not seen any thorough, long-term testing to show that this battery wear software is accurate.
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I discharged battery twice and wear went down from 18 to 7
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Did you know that Vaio provides a software that stops charging the battery at about 80% or 90%
and I have been told that it is one way to extend you battery life - Is there any truth to this ? -
The software comes up with a figure based on characteristics it senses, but it probably isn't fair to call it "wear". If the battery really were 18% worn, it couldn't suddenly get newer and less worn. The so-called "wear" figure may be more a measure of how much charge the battery can hold as compared to some baseline. Exercising a battery, as you did by discharging and charging twice, can allow it to hold more of a charge if it hadn't been exercised in a while. -
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Hi Sam,
you must remove the ac-adapter once charging is complete. Keeping it in, will only heat up the battery and heat is one of the major reasons for battery malfunction. If you know you're going to use your laptop with its ac-adapter connected for a long time, it's better to remove the battery completely but not after you made sure it is 40% charged.
Doing this will help you keep your battery at a healthy state. -
Most batteries come from the factory with 0-5% capacity loss. Best thing to do is recalibrate every few months. Use your computer on battery as normal, then boot into BIOS, leave overnight, and let the computer just die/shut off. Recharge the battery completely, then you should have an accurate reading of your battery life. Recalibration doesn't magically add capacity. It just calibrates it for more accurate measurement.
Keeping your machine plugged in all the time doesn't hurt it contrary to what some people say. USING your battery is the biggest killer of capacity... but that's what it's designed to do. If you're too paranoid to use your battery, don't get/use a laptop. It will deplete over time whether you use it or not, and it's relatively inexpensive to replace compared to the rest of the laptop. You will probably have to replace it after three years anyhow whether you use it or not, because it just loses life over time.
Removing the battery completely defeats the purpose of having a laptop. Think of it as a built-in UPS. Accidentally yank the cord out, oops, there goes your data. There goes your hard drive.
Keeping it in won't heat up the battery unless you have a very poorly designed laptop. I used a gaming Sager notebook for 18-20 months and it was plugged in 95% of the time with battery installed. Guess what, after that time, battery lost less than 10% of it's capacity. Laptops have smart battery management technology. If your machine allows you turn off charging, then that isn't a horrible idea if you drain your battery to 40% and leave it, but you will only gain yourself maybe an extra few months of life for the battery.
See here: http://forum.notebookreview.com/har...lease-contribute-data-battery-life-usage.html -
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5% Battery wear after a month of receiving the laptop - Normal ?
Discussion in 'Dell XPS and Studio XPS' started by dtgulab, Mar 29, 2012.