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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Lap top battery Longevity
There's a lot of information about that if you keep a Laptop battery
charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. |
#2
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Lap top battery Longevity
On Fri, 9 Dec 2016 11:24:19 +0000
john west wrote: There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. I asked a similar question a couple of years ago, in a computer newsgroup, and there was little consensus about the best method of conserving the battery. It will be interesting to see if there is anything new. I bought this laptop new about four years ago, and used it with the battery installed, but using the mains, and the battery power is almost zero now, so I am looking for the best way to treat a replacement battery. -- Davey. |
#3
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Lap top battery Longevity
john west wrote:
There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. There's several things that control the life of rechargeable batteries: The quality of the cells The temperature they run at (and available cooling) The loads they get put to (see temperature) The smartness of the battery manager in terms of charging, discharging and balancing. As always 'it depends', but I'd suggest the battery manager is smarter than you are are regards maintaining the optimal state of charge to keep the battery happy. The only thing is that it has no prescience over what you're going to do in future - eg store the laptop for months unplugged - but otherwise I'd suggest it's best to leave it to it. That doesn't apply so much to old laptops (dumb batteries), cheaper laptops (poorly written management software) or removable batteries (in some cases the manager might be in the appliance or charger not in the battery - unlikely with laptops but can apply to eg power tools). The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. It'll depend on the battery manager in that particular machine, but one thing to say is keep the battery cool. If the laptop gets hot, that'll degrade battery life. Also it's worth using the battery from time to time - don't leave it on charger forever. But otherwise it's going to be pretty hard to maintain 40-80% without causing lots of charge/discharge cycles which will wear the battery. Theo |
#4
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Lap top battery Longevity
Theo wrote:
john west wrote: There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. There's several things that control the life of rechargeable batteries: The quality of the cells The temperature they run at (and available cooling) The loads they get put to (see temperature) The smartness of the battery manager in terms of charging, discharging and balancing. As always 'it depends', but I'd suggest the battery manager is smarter than you are are regards maintaining the optimal state of charge to keep the battery happy. The only thing is that it has no prescience over what you're going to do in future - eg store the laptop for months unplugged - but otherwise I'd suggest it's best to leave it to it. That doesn't apply so much to old laptops (dumb batteries), cheaper laptops (poorly written management software) or removable batteries (in some cases the manager might be in the appliance or charger not in the battery - unlikely with laptops but can apply to eg power tools). The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. It'll depend on the battery manager in that particular machine, but one thing to say is keep the battery cool. If the laptop gets hot, that'll degrade battery life. Also it's worth using the battery from time to time - don't leave it on charger forever. But otherwise it's going to be pretty hard to maintain 40-80% without causing lots of charge/discharge cycles which will wear the battery. Theo With my sony touch screen vaio, sony themselves say set charge to 80% makes it last longer. |
#5
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Lap top battery Longevity
On Friday, 9 December 2016 11:23:48 UTC, john west wrote:
There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. it probbably depends on teh tyep of battery and the make of teh battery and charging circuit, I'm sure Apple used to advise discharging it comnpletely every month adn then charging it to full as this updates the info of teh battery condition so it can fully charge rather than part charge. Other information I find says it is the charging and discharging that wears the battery out. well yes they have a 'life cycle' but I'm not sure with todays battereis whether charging them up every hour to keep them charged is the best option on to let them go below 10% is best. Not havign a labtop means I don;lt have to think about it. I charge my iupad when I;m NOT using it and it;s below about 50% charged. Last night it stopped while I was listening to a podcast 4% was the last I noticed. So at 1:10am I decided I might as well go to bed and charge the ipad ready for the morning. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. |
#6
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Lap top battery Longevity
On 09/12/16 13:24, john west wrote:
There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. the latter. longevity of Li-ion is vastly reduced at high states of charge, more than the issues of multiple shallow cycling. |
#7
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Lap top battery Longevity
On Fri, 9 Dec 2016 11:24:19 +0000, john west
wrote: There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. My wife's Samsung netbook has a setting for battery conservation which is 80%. If we are travelling we reset this to 100% but at home it is back to 80%. This is an early 2012 purchase and without specific testing the battery appears fine. For my main Lenovo laptop (2007) I have two batteries. The original and now basically defunct battery is in all the time, it just about has enough juice to shut down on no power. The other I only use if I'm about to travel. I've taken the battery out of an occasionally used laptop which essentially makes it no different to a normal desktop computer as far as power is concerned. -- AnthonyL |
#8
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Lap top battery Longevity
In article ,
john west wrote: There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. It depends on the charger in the laptop. I have an Acer laptop - not the cheapest they did - which cooks the battery if left in the machine. So I remove it when not needed. A better designed one wouldn't cause problems. -- wife. Dave Plowman London SW To e-mail, change noise into sound. |
#9
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Lap top battery Longevity
"Dave Plowman (News)" wrote in message ... In article , john west wrote: There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. It depends on the charger in the laptop. I have an Acer laptop - not the cheapest they did - which cooks the battery if left in the machine. So I remove it when not needed. A better designed one wouldn't cause problems. Yeah, I have a Compaq that I chose to leave permanently on charge 24/7/365 which saw the battery last for well over a decade now. The double capacity battery has only just died and I have gone back to the original normal capacity battery. |
#10
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Lap top battery Longevity
On 09/12/2016 11:24, john west wrote:
There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. Both are true, but keeping it fully charged all the time kills it even faster than cycling it through periodic discharge. It is bad to keep it near either end of the spectrum for long periods of time. How hot the PC gets plays a part too - and they generally run faster and hotter on mains when all power saving features are typically disabled. Charged and on mains supply is how I generally killed my portables - it runs faster when on mains so it generally is unless I'm travelling. Deep discharged and left for a long period of time will brick it into a state where safety features will (should) prevent it ever working again. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Even so you should cycle the battery to 20% or lower and then recharge at least once a month. I have killed plenty of laptop batteries on continuous power. The newer chemistry is a bit more robust but in search of ever greater energy density that margin gets eroded again. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. -- Regards, Martin Brown |
#11
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Lap top battery Longevity
On Fri, 9 Dec 2016 13:37:25 +0000
Martin Brown wrote: Even so you should cycle the battery to 20% or lower and then recharge at least once a month. I have killed plenty of laptop batteries on continuous power. The newer chemistry is a bit more robust but in search of ever greater energy density that margin gets eroded again. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. That sounds like decent advice. Although I rarely need to run on battery power, it is worth having one that will actually run. I can buy a replacement for my dead one, and implement a serious charging routine based on the above. Next question: Which battery suppliers are good, and which are to be avoided? Or should I buy a proper Samsung battery? -- Davey. |
#12
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Lap top battery Longevity
On Friday, 9 December 2016 15:18:14 UTC, Davey wrote:
On Fri, 9 Dec 2016 13:37:25 +0000 Martin Brown wrote: Even so you should cycle the battery to 20% or lower and then recharge at least once a month. I have killed plenty of laptop batteries on continuous power. The newer chemistry is a bit more robust but in search of ever greater energy density that margin gets eroded again. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. That sounds like decent advice. Although I rarely need to run on battery power, it is worth having one that will actually run. I can buy a replacement for my dead one, and implement a serious charging routine based on the above. Next question: Which battery suppliers are good, and which are to be avoided? Or should I buy a proper Samsung battery? difficult Q considering the problems they are having with soem of their exploding phones and washing machines catching fire. In theory gettign an original battery from a trusted supplier would be the best bet. |
#13
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Lap top battery Longevity
whisky-dave wrote:
On Friday, 9 December 2016 15:18:14 UTC, Davey wrote: Next question: Which battery suppliers are good, and which are to be avoided? Or should I buy a proper Samsung battery? difficult Q considering the problems they are having with soem of their exploding phones and washing machines catching fire. In theory gettign an original battery from a trusted supplier would be the best bet. Samsung is essentially a country. Just because one bit makes a bad product doesn't mean all of it does. It's not like the phone and washing machine departments are going to have anything in common, beyond senior management and contributing to the same balance sheet. Would you not sail in a Samsung ship because they have a problem with exploding phones? Anyway, if you want it to last buy an original manufacturer battery. There's way too many junk batteries being churned out of China. The quality of a battery is measured in the number of cycles it can do, which you won't find out until several years down the track. A cheap battery (or a cheap battery with an expensive price tag) might do 100-200 cycles before capacity drops, when the OEM battery does 1000. This means you have to view all aftermarket batteries with suspicion because you just can't tell. The last non-OEM battery I bought, they got rather fed up of me after the third claim on the year's warranty... Theo |
#14
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Lap top battery Longevity
On Friday, 9 December 2016 21:18:27 UTC, Theo wrote:
Samsung is essentially a country. Just because one bit makes a bad product doesn't mean all of it does. I had a Samsung bluray DVD which failed so I chucked it away and got a much superior Sony, but that did not stop me buying a £300 Samsung 1TB SSD storage drive. |
#15
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Lap top battery Longevity
On Friday, 9 December 2016 21:18:27 UTC, Theo wrote:
whisky-dave wrote: On Friday, 9 December 2016 15:18:14 UTC, Davey wrote: Next question: Which battery suppliers are good, and which are to be avoided? Or should I buy a proper Samsung battery? difficult Q considering the problems they are having with soem of their exploding phones and washing machines catching fire. In theory gettign an original battery from a trusted supplier would be the best bet. Samsung is essentially a country. Just because one bit makes a bad product doesn't mean all of it does. It's not like the phone and washing machine departments are going to have anything in common, beyond senior management and contributing to the same balance sheet. And that might give you a clue. Would you not sail in a Samsung ship because they have a problem with exploding phones? If the ship ran on batteries I might decide to gibe a samsung boat amiss and chgoose an iBoat. Anyway, if you want it to last buy an original manufacturer battery. That would be the safest option butt are you now saying that only one manufactuerer can make decnet working batteries ? There's way too many junk batteries being churned out of China. The quality of a battery is measured in the number of cycles it can do, Which is, can do, is that a measure of what it can do, or a guesitmate of how many they hope it can do. which you won't find out until several years down the track. or perhaps days. A cheap battery (or a cheap battery with an expensive price tag) might do 100-200 cycles before capacity drops, when the OEM battery does 1000. This means you have to view all aftermarket batteries with suspicion because you just can't tell. That is a problem, which is why if you want to aviod such problems get the prodcuct from a relible source. If you want to risk ebay then go for it. The last non-OEM battery I bought, they got rather fed up of me after the third claim on the year's warranty... I'd prefer a bettery I could use rather than a cheaper battery I'd have to keep sending back, in fact I;d be willingot pay more for a bettery in a laptop than I wopuld for one being posted back and forth :-) |
#16
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Lap top battery Longevity
On Fri, 9 Dec 2016 07:22:27 -0800 (PST)
whisky-dave wrote: On Friday, 9 December 2016 15:18:14 UTC, Davey wrote: On Fri, 9 Dec 2016 13:37:25 +0000 Martin Brown wrote: Even so you should cycle the battery to 20% or lower and then recharge at least once a month. I have killed plenty of laptop batteries on continuous power. The newer chemistry is a bit more robust but in search of ever greater energy density that margin gets eroded again. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. That sounds like decent advice. Although I rarely need to run on battery power, it is worth having one that will actually run. I can buy a replacement for my dead one, and implement a serious charging routine based on the above. Next question: Which battery suppliers are good, and which are to be avoided? Or should I buy a proper Samsung battery? difficult Q considering the problems they are having with soem of their exploding phones and washing machines catching fire. In theory gettign an original battery from a trusted supplier would be the best bet. Searching online for a replacement for my Samsung comes up with: LaptopsDirect.co.uk offering an OEM battery, at £82. For my use, that is a lot of money, which is not to say that it is also a lot for somebody who needs to use his PC in the field, as I did when I was working. But then, my employer always provided the laptop. I have never had to buy a replacement battery before, so is LaptopsDirect a reputable company, if I decide to get a new battery? If not, who should I try instead? -- Davey. |
#17
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Lap top battery Longevity
On Monday, 12 December 2016 11:45:06 UTC, Davey wrote:
On Fri, 9 Dec 2016 07:22:27 -0800 (PST) whisky-dave wrote: On Friday, 9 December 2016 15:18:14 UTC, Davey wrote: On Fri, 9 Dec 2016 13:37:25 +0000 Martin Brown wrote: Even so you should cycle the battery to 20% or lower and then recharge at least once a month. I have killed plenty of laptop batteries on continuous power. The newer chemistry is a bit more robust but in search of ever greater energy density that margin gets eroded again. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. That sounds like decent advice. Although I rarely need to run on battery power, it is worth having one that will actually run. I can buy a replacement for my dead one, and implement a serious charging routine based on the above. Next question: Which battery suppliers are good, and which are to be avoided? Or should I buy a proper Samsung battery? difficult Q considering the problems they are having with soem of their exploding phones and washing machines catching fire. In theory gettign an original battery from a trusted supplier would be the best bet. Searching online for a replacement for my Samsung comes up with: LaptopsDirect.co.uk offering an OEM battery, at £82. For my use, that is a lot of money, which is not to say that it is also a lot for somebody who needs to use his PC in the field, as I did when I was working. But then, my employer always provided the laptop. I have never had to buy a replacement battery before, me niether. so is LaptopsDirect a reputable company, if I decide to get a new battery? From looking they seem OK, you could try asking on a computer group see if anyones delt with them before. They 'look' ok having a phone number. If I were buying a battery I;'d consider them above someone on ebay with next day despatch from china, even if they were half the price. I've never brought a laptop always a desktop to use in the home or even at work. If not, who should I try instead? -- Davey. |
#18
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Lap top battery Longevity
On 09/12/16 15:37, Martin Brown wrote:
You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. This is an urban myth that applied to (some) eary nickel chemistry. It is completely untrue for lithium ion batteries. These like to be left neither charged nor discharged. They will self discharge over a few years, so need recharging every - say - 6 months. |
#19
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Lap top battery Longevity
On 09/12/2016 13:37, Martin Brown wrote:
ll the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. Charging memory is supposed to have disappeared years ago - modern chemistry much better |
#20
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Lap top battery Longevity
"rick" wrote in message
news On 09/12/2016 13:37, Martin Brown wrote: ll the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. Charging memory is supposed to have disappeared years ago - modern chemistry much better What about leaving the charger connected to the laptop when it's not being used, effectively charging a full battery. Does that damage the battery over time? Each laptop I've owned (successively: Win XP, Vista, 7) I've tried to be really careful to do all the right things and none of the wrong things: - only connect to the mains to charge the battery and sometimes while using the laptop - normally run the laptop down to about half charge and then top up again, repeating that cycle if I'm using the laptop for a prolonged period - run the laptop down to zero charge every few days But each one has eventually, after a couple of years, suffered from gradually reduced battery capacity that has eventually led to the laptop only being usable on mains (ie it switches off immediately the mains plug is removed). For one of the laptops, I bought a cheap Chinese clone battery which seemed to last about as long as the one that was originally fitted, rather than a much shorter time as I was expecting. Manufacturers were, respectively, Acer, HP and Samsung - though where they source their batteries from is anyone's guess. |
#21
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Lap top battery Longevity
"NY" wrote in message o.uk... "rick" wrote in message news On 09/12/2016 13:37, Martin Brown wrote: ll the time or to go for the 80% - 40% option. Thanks. You need to cycle the battery every couple of weeks or so or the chemistry will get stuck in a charged but forgotten how to discharge state. That means when you do need to use it the remaining battery capacity is a tiny fraction of its nominal rating. No problem if you can always use it on mains power but a nuisance when travelling. Charging memory is supposed to have disappeared years ago - modern chemistry much better What about leaving the charger connected to the laptop when it's not being used, effectively charging a full battery. Does that damage the battery over time? It does with the worst of them. Not with the best of them. Each laptop I've owned (successively: Win XP, Vista, 7) I've tried to be really careful to do all the right things and none of the wrong things: - only connect to the mains to charge the battery and sometimes while using the laptop - normally run the laptop down to about half charge and then top up again, repeating that cycle if I'm using the laptop for a prolonged period - run the laptop down to zero charge every few days I couldnt be bothered with the one I keep in the kitchen, decided replacement batterys were so cheap that I left the battery in it all the time and had it plugged into the mains all the time and had that Compaq get more than a decade out of the double capacity battery I got for it off ebay. That has just died a couple of months ago and I have now put the original battery back in it and plan to use it the same way. But each one has eventually, after a couple of years, suffered from gradually reduced battery capacity that has eventually led to the laptop only being usable on mains (ie it switches off immediately the mains plug is removed). For one of the laptops, I bought a cheap Chinese clone battery which seemed to last about as long as the one that was originally fitted, rather than a much shorter time as I was expecting. Manufacturers were, respectively, Acer, HP and Samsung - though where they source their batteries from is anyone's guess. It appears to be more about how the charging is done by the laptop. |
#22
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Lap top battery Longevity
On Saturday, 10 December 2016 01:05:55 UTC, Rod Speed wrote:
It appears to be more about how the charging is done by the laptop. I got this thanks to you. http://ebay.eu/2gr8UTx |
#23
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Lap top battery Longevity
The question is unanswerable. The whole thing depends on how the charger
works. In most cases I've encountered there is a circuit inside the laptop that monitors the battery, sometimes from a separate contact on the pack which may or may not have its own electronics monitoring the cells. At any rate, however it is done it seems to read, pulse then re read the battery and somehow decides whether to increase the charging times of the pulses and hence charge it. However if the charger is pretty dumb and just keeps on charging, which I've never encountered it will trash the batter quite fast That only leaves you able to decide how much you use it before recharging, and I suspect the little ever changing info in the task bar is only a rough guess from some arbitrary timer in the machine that may or may not look at the current used as it goes along. All I know is that on my Dell, it lasts longer with the screen off, and even longer if you allow it to throttle back the processor, so without some idea of a make and model its probably just an educated guess. I think as long as one does not run it completely flat, something which the dell will not allow forcing you to close it at around 14 percent left, then the life should be reasonable assuming no faults in a cell or other nasty happenings. So how many words was that for, don't know! Brian -- ----- - This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please! "john west" wrote in message news There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. |
#24
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Lap top battery Longevity
On 09/12/2016 11:24, john west wrote:
There's a lot of information about that if you keep a Laptop battery charged between only 80% full and only 40% full, it will be servicable over the years for four times as long. Other information I find says it is the charging and discharging that wears the battery out. The laptop i have (with a built in battery) is mainly used in one room, so it is easy to keep it plugged in *all the time* to mains electricity. Would it be better to prolong the life of the battery to keep it plugged in all the time or to go for the 80% - 40% option. Thanks. I have my laptop on a docking station ... so always keeps it charged to 100% |
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