Leaving a notebook while it is charging for a long time

Baskhara

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Hello everyone!
I got a question about leaving a notebook while it is charging.
I have a software on my notebook called Lenovo Energy Management, and there's 2 battery mode available, the one is "Maximum Battery Life" and the other is "Optimized Battery Health" so I choose "Optimized Battery Health" mode, and leaving my notebook while it is charging for about 5 hours. When I am go back home, I saw that my battery is stay on 60% and it say "Plugged in, not charging". It won't charge the battery higher than 60%, so I guess the battery is limited to 60% from it's full capacity. The question is, is it safe for the battery if I leave the notebook while it is charging for more than 5 hours even the battery capacity is limited?
Thanks in advance. :)
2014-06-10_112848.jpg
 

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There's enough circuitry inside to protect from overcharging, just don't leave it on a soft (like a bed) and flammable surface (like paper) in case of something going wrong. If you are worried about battery "memory", that is all but eliminated with new batteries but was bad with old NiCads.
 

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So it is safe enough to leave a notebook keep charging without risking the battery life, I do it to complete my download by the way :D anyway I place my notebook above cooling pad. The hard drive mostly getting hot quicker than the orher peripheral, without the cooling pad I think it'll be bad.
Anyway thanks for taking time to answer my question ;)
 

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    Windows 8.1 x64 & Ubuntu 14.10 x64
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    Lenovo G400
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    Intel(R) Celeron(R) CPU 1005M @ 1.9GHz
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When you said "Safe", I thought you meant like about physical damage or fire etc.
Check your manual for recommendation about battery life. Some manufacturers do recommend to charge battery to almost full state, remove it and store in dark cool place when using computer for prolonged periods where external power is always available, like at home and not carrying it a lot. Keep in mind that every battery has a finite number of recharges after which it starts to deteriorate. Newer ones are much better with that aspect but not perfect.
 

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looks similar to how my dell works with this setting

its to save the battery by not keeping it at 100% charge (if plugged into the mains for long periods)

every so often it will automatically switch over to using the battery, then when it gets below 50% charge it will charge itself up a bit (for me it charges anywhere from 50 to 90%), then repeat

it simulates you using it on battery then plugging it in for a couple of hours to charge
 

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    Windows 8.1
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    Dell Inspiron 3521
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Thanks you CountMike I'll read the manual again tonight, I haven't found any information about keeping the battery while charging for long periods at the current manual or might be I skipped it hehe..


paulsalter, my notebook will not do that as far I know, except I change the battery mode to Battery Health, if I charge it for long time without the Battery Health mode, it'll stay on 100% for a long time until I unplug the AC Adapter, unlike when Battery Health mode enabled, it stop charging at certain level.
 

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    Windows 8.1 x64 & Ubuntu 14.10 x64
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    Lenovo G400
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    Intel(R) Celeron(R) CPU 1005M @ 1.9GHz
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    Lenovo Invalid (U3E1)
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Depends how often you use it on the battery

If you mainly have it connected via mains (long periods, ie weeks) have battery health mode enabled, it will occasionally use the battery and not charge it upto 100% (you might not notice too much, mine has gone from 58% to 57% in the last 3 days)

if you use it a lot with the battery, have this disabled so you always have a full charge when you are without power

from what I have seen, having it always on 100% when using the mains is bad for the battery as it is not getting any use
 

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Just one little advice, when updating windows, make sure you have battery in and it's plugged in the adapter too, in case of power failure you would have much less to go wrong with system.
 

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paulsalter, well sometimes (maybe everytime) when I play a game I always forgotten to unplug the charger and it always fully charge to 100%. I think that was really bad.

Thanks for your advice CountMike, I always have battery and AC adapter connected when updating windows. But at this time, I don't know what is wrong but Windows Update isn't working, it's look like a network failure but don't know exactly why. Sometimes it will only updating when connected to VPN, but sometimes it updating directly with my network, maybe the provider block the Windows Update or my anti-virus block it.
 

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  • OS
    Windows 8.1 x64 & Ubuntu 14.10 x64
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    Lenovo G400
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    Intel(R) Celeron(R) CPU 1005M @ 1.9GHz
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    Lenovo Invalid (U3E1)
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    6 GB Dual-Channel DDR3 (1600 MHz)
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paulsalter, well sometimes (maybe everytime) when I play a game I always forgotten to unplug the charger and it always fully charge to 100%. I think that was really bad.

Thanks for your advice CountMike, I always have battery and AC adapter connected when updating windows. But at this time, I don't know what is wrong but Windows Update isn't working, it's look like a network failure but don't know exactly why. Sometimes it will only updating when connected to VPN, but sometimes it updating directly with my network, maybe the provider block the Windows Update or my anti-virus block it.
AV most likely. You can also download those windows updates from MS site and try installing them off line.
 

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  • OS
    Windows 8.1 Pro
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    AMD Ryzen7 2700x
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    Asus Prime x470 Pro
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    16GB Kingston 3600
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paulsalter, well sometimes (maybe everytime) when I play a game I always forgotten to unplug the charger and it always fully charge to 100%. I think that was really bad.

All depends how often you unplug mains and run it on battery

If it's left for only a few days on 100% with charger in that's fine
If it's left for months with charger in and 100% then it's bad (this is where you should use optimize battery option)
 

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  • OS
    Windows 8.1
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    Dell Inspiron 3521
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    4 GB
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AV most likely. You can also download those windows updates from MS site and try installing them off line.
Yeah I think manually downloading and installing from Microsoft site is the only option which work for me.
 

My Computer

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  • OS
    Windows 8.1 x64 & Ubuntu 14.10 x64
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    Lenovo G400
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    Intel(R) Celeron(R) CPU 1005M @ 1.9GHz
    Motherboard
    Lenovo Invalid (U3E1)
    Memory
    6 GB Dual-Channel DDR3 (1600 MHz)
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    Conexant SmartAudio HD
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    Seagate ST500LT012-9WS142 500GB
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All depends how often you unplug mains and run it on battery

If it's left for only a few days on 100% with charger in that's fine
If it's left for months with charger in and 100% then it's bad (this is where you should use optimize battery option)
wow for months? I will never do that, I think it sound really bad hehe..
 

My Computer

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  • OS
    Windows 8.1 x64 & Ubuntu 14.10 x64
    Computer type
    Laptop
    System Manufacturer/Model
    Lenovo G400
    CPU
    Intel(R) Celeron(R) CPU 1005M @ 1.9GHz
    Motherboard
    Lenovo Invalid (U3E1)
    Memory
    6 GB Dual-Channel DDR3 (1600 MHz)
    Graphics Card(s)
    Intel(R) HD Graphics
    Sound Card
    Conexant SmartAudio HD
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    14.0" HD LED
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All depends how often you unplug mains and run it on battery

If it's left for only a few days on 100% with charger in that's fine
If it's left for months with charger in and 100% then it's bad (this is where you should use optimize battery option)
wow for months? I will never do that, I think it sound really bad hehe..
Well, a lot of people use laptops (specially larger ones) instead of a desktop PC. My girlfriend never even put battery in hers, for at least 2 years. I was trying to get her a micro PC and connect it to large TV set but she "doesn't like wires, difficult to clean around them".
 

My Computer

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  • OS
    Windows 8.1 Pro
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    Home made
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    AMD Ryzen7 2700x
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    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
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    Asus strix 570 OC 4gb
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    WD 2 TB Blue
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    Raidmax
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    CCM Nepton 140xl
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    40/2 Mbps
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Well, a lot of people use laptops (specially larger ones) instead of a desktop PC. My girlfriend never even put battery in hers, for at least 2 years. I was trying to get her a micro PC and connect it to large TV set but she "doesn't like wires, difficult to clean around them".

I use mine instead of a desktop, just prefer laptops (about 75% at home the rest portable)

If I use it as a portable I set it to fully charge battery to 100% when plugged in
If it's going to be used only at home for more than a few days I set the battery optimization option
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model
    Dell Inspiron 3521
    CPU
    i5
    Memory
    4 GB
    Graphics Card(s)
    AMD Radeon
    Browser
    IE
All depends how often you unplug mains and run it on battery

If it's left for only a few days on 100% with charger in that's fine
If it's left for months with charger in and 100% then it's bad (this is where you should use optimize battery option)
wow for months? I will never do that, I think it sound really bad hehe..

I always leave mine on charge. All the time apart from the rare case I'm travelling - sometimes once or twice a month, sometimes not for 6 months or more. After 3 1/2 years I still have 91% design capacity.

I see no problem leaving it plugged in all the time except (now I think of it) it may waste electricity warming up the power supply brick.
 

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Well, a lot of people use laptops (specially larger ones) instead of a desktop PC. My girlfriend never even put battery in hers, for at least 2 years. I was trying to get her a micro PC and connect it to large TV set but she "doesn't like wires, difficult to clean around them".
Wow, for at least 2 years without battery? I am wondering what happen if running a laptop without battery in a place with frequently power cuts that made the laptop sudden shutdown? It's been 3x my laptop lost on power when running without battery, and I think it made the laptop taking longer on boot and startup. I read somewhere (as I remember) that it will potentially break some component inside if the laptop frequently lost on power. Is that right? :confused:

I use mine instead of a desktop, just prefer laptops (about 75% at home the rest portable)

If I use it as a portable I set it to fully charge battery to 100% when plugged in
If it's going to be used only at home for more than a few days I set the battery optimization option
Well, I think that a good idea.. :thumbsup:
 

My Computer

System One

  • OS
    Windows 8.1 x64 & Ubuntu 14.10 x64
    Computer type
    Laptop
    System Manufacturer/Model
    Lenovo G400
    CPU
    Intel(R) Celeron(R) CPU 1005M @ 1.9GHz
    Motherboard
    Lenovo Invalid (U3E1)
    Memory
    6 GB Dual-Channel DDR3 (1600 MHz)
    Graphics Card(s)
    Intel(R) HD Graphics
    Sound Card
    Conexant SmartAudio HD
    Monitor(s) Displays
    14.0" HD LED
    Screen Resolution
    1366 x 768
    Hard Drives
    Seagate ST500LT012-9WS142 500GB
    Keyboard
    Yes
    Mouse
    Logitech G300s
    Browser
    Google Chrome
    Antivirus
    Kaspersky Internet Security
Well, a lot of people use laptops (specially larger ones) instead of a desktop PC. My girlfriend never even put battery in hers, for at least 2 years. I was trying to get her a micro PC and connect it to large TV set but she "doesn't like wires, difficult to clean around them".
Wow, for at least 2 years without battery? I am wondering what happen if running a laptop without battery in a place with frequently power cuts that made the laptop sudden shutdown? It's been 3x my laptop lost on power when running without battery, and I think it made the laptop taking longer on boot and startup. I read somewhere (as I remember) that it will potentially break some component inside if the laptop frequently lost on power. Is that right? :confused:

I use mine instead of a desktop, just prefer laptops (about 75% at home the rest portable)

If I use it as a portable I set it to fully charge battery to 100% when plugged in
If it's going to be used only at home for more than a few days I set the battery optimization option
Well, I think that a good idea.. :thumbsup:


Nothing different than when same happens with desktops, eventually gets some file disruptions, that's all.
 

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    AMD Ryzen7 2700x
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    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
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    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
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    Sharkoon, Silent Storm 660W
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    Raidmax
    Cooling
    CCM Nepton 140xl
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    40/2 Mbps
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Hi there.

Modern PC's have batteries that shouldn't be effected by continuous charge -- the reason you are usually requested to remove when 100% charged is purely for safety -- like everything else it's always better where feasible to disconnect anything from the mains supply if it's not being used -- and in these days of high energy prices it makes sense.

Laptop batteries have a certain shelf life like other batteries -- they will deteriorate with time anyway. Leaving a laptop connected to the mains even when not in use shouldn't make any significant difference to the battery (only to your power bill).

Cheers
jimbo
 

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Yes, modern Li.Ion batteries are pretty resilient comparing to older NiCd but still have both, shelf life and number of recharges limit. Charge "memory" is largely alleviated and have longer life altogether but are still expensive. I used to change individual cells in older NiCads battery packs and so managed to lower the price of replacement. This new ones are different.
 

My Computer

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  • OS
    Windows 8.1 Pro
    Computer type
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    System Manufacturer/Model
    Home made
    CPU
    AMD Ryzen7 2700x
    Motherboard
    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
    Hard Drives
    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
    PSU
    Sharkoon, Silent Storm 660W
    Case
    Raidmax
    Cooling
    CCM Nepton 140xl
    Internet Speed
    40/2 Mbps
    Browser
    Firefox
    Antivirus
    WD
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