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Can I use the laptop with the adapter plugged in with the battery removed?

nokusia 133532 38
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Can I use a laptop on mains power with the battery removed, and will it damage the hardware?

Yes — you can run the laptop from the adapter with the battery removed, and the thread says it should not harm the laptop’s hardware or motherboard [#10283505][#10283510][#10288343] The main downside is that the battery normally acts like a UPS, so if the power goes out you will lose your work/data immediately [#10283505][#10284786] If you choose to remove the battery for long-term use on AC power, several replies recommend storing the battery partially charged instead of empty or fully charged, with values around 30–40% or about half charge mentioned [#10283543][#10283956][#10288297] One reply also notes that keeping the battery in the laptop is still reasonable because it can be used occasionally and helps preserve emergency backup power [#10284786]
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  • #1 10283475
    nokusia
    Level 9  
    Posts: 22
    Rate: 19
    Hello, as in the subject.

    I heard that when I "work" on a laptop connected to the 230V mains with the battery, it is possible that the battery may lose its performance after some time and keep it shorter, right?
    For example, if I only have a laptop connected / without a battery inserted / and only connected to the power supply, i.e. with a power supply, will nothing threaten the hardware, motherboard, etc.?
    The laptop model is SAMSUNG R 510
    I am asking for a hint.
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    #2 10283505
    kisiel291
    Level 12  
    Posts: 30
    Help: 1
    The controller takes care of the battery, so there should be no problems with new laptops. You can use the paw without a battery on the power supply itself, but when the power goes out, you will lose all data.
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    #3 10283510
    T1omek
    Level 19  
    Posts: 288
    Help: 28
    Rate: 37
    Such use is advisable when we use a laptop as a stationary one and we do not need such protection of our work in the event of a power outage. The battery should then be stored either full or half charged, I do not remember exactly, but it has to do with the life of the cells and you can read about it. The laptop itself will not be threaded when it works without a battery.
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    #4 10283543
    antropez
    Level 11  
    Posts: 19
    Help: 2
    Rate: 6
    T1omek wrote:
    The battery should then be stored either full or half full, I do not remember exactly

    Half-charge it and store it like that. Of course, it matters whether the battery stays in the laptop all its "life" or is stored outside of it. If you do not do anything important when working at the computer, which in the event of a power failure will be lost (not saved on the disk) and you want to have the batteries in the best condition and use it, e.g. in the field, charge it halfway and put it in the closet ;)
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  • #5 10283553
    nokusia
    Level 9  
    Posts: 22
    Rate: 19
    T1omek wrote:
    Such use is advisable when we use a laptop as a stationary one
    Yes, maybe about 3 weeks for now, I will only have it connected without a battery, and on the power supply only :)

    Added after 3 [minutes]:

    kisiel291 wrote:
    The controller takes care of the battery, so there should be no problems with new laptops. You can use the paw without a battery on the power supply itself, but when the power goes out, you will lose all data.
    If only it was like that, I would be happy myself, because bahh .. electricity suddenly lacks / battery not inserted / and the whole lapek system falls and goes out and data, etc. all over again ..; /
    Added after 1 [minutes]:


    antropez wrote:
    and you want to have the batteries in the best condition and use them, for example, in the field, then half-charge them and put them in the closet
    ok too Thank you for the help ...
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    #6 10283590
    andy127
    Level 30  
    Posts: 1249
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    Hello.
    nokusia wrote:
    The laptop model is the SAMSUNG R 510

    What about the "User Manual"?
    Because, for example, with Toshiba, work without a battery is a normal mode of operation, and work with continuous recharging of the battery is not recommended due to its durability.
    It all depends on how the manufacturer has completed the recharging of the battery.
    Look:
    https://www.elektroda.pl/rtvforum/topic2157964-0.html
    Andrew
  • #7 10283658
    nokusia
    Level 9  
    Posts: 22
    Rate: 19
    andy127 wrote:
    What about the "User Manual"?
    I just have it but without ..
    and the model is exactly that
    Samsung R510-XS01PL
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    #10 10283787
    Bródka
    Level 42  
    Posts: 7239
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    You can use the laptop without batteries, but for me it makes no sense because the cells wear out to a certain extent anyway and it is better to have batteries in case of emergency than to sit in the closet.
    I do not advise you to fully discharge the battery and put it in the cabinet because, as you know, energy "escapes" over time from the cells, and cells below a certain voltage value may be damaged, i.e. they lose their capacity

    The batteries are not charged non-stop anyway, only after loading the power system switches to electricity from the power supply, it is enough to use some batteries once every two or three weeks and it will be better for her "health" than lying in the closet
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  • #11 10283838
    andy127
    Level 30  
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    nokusia wrote:
    yes, I found and read only about the battery that if it is not to be used for a long time, it must be completely discharged and put into the cabinet :)

    If you hide the unloaded one in a cupboard, it won't be good for her. If it says so in the manual, I am surprised.
    Andrew
  • #12 10283875
    nokusia
    Level 9  
    Posts: 22
    Rate: 19
    Bródka wrote:
    You can use the laptop without batteries, but for me it makes no sense because the cells wear out to a certain extent anyway and it is better to have batteries in case of emergency than to sit in the closet.
    I do not advise you to fully discharge the battery and put it in the cabinet because, as you know, energy "escapes" over time from the cells, and cells below a certain voltage value may be damaged, i.e. they lose their capacity

    The batteries are not charged non-stop anyway, only after loading the power system switches to electricity from the power supply, it is enough to use some batteries once every two or three weeks and it will be better for her "health" than lying in the closet
    it doesn't make sense to me either, I decided to put the batteries back in and work on the power supply, because I'm afraid that suddenly the electricity may turn off the energy and my work will be unfinished while writing, and again ... ehh
    Now when I "work" on the laptop with the battery and power adapter connected, I write in the bar .. near the system clock that; Left: 98% (connected, not charging) so I see that Samsung has some protection for overcharging etc. :D

    Added after 1 [minutes]:

    andy127 wrote:
    If it says so in the manual, I am surprised
    really, that's what I write there! :) here is the screen from the manual ..

    Can I use the laptop with the adapter plugged in with the battery removed?
    PS at most I will be every now and then, e.g. every 3 weeks disconnect the power supply and on the battery itself to discharge and back again power supply + battery together ..
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    #13 10283945
    laseroz
    Level 11  
    Posts: 62
    Help: 2
    Rate: 15
    I do not know if the technology of using the battery, its charging and general operation is universal in the case of laptops, but Asus, for example, advises against over-discharging the battery in a laptop.
    If you are going to use a laptop that is permanently connected to the network, try to calibrate the battery at least once a month. Even if today you do not use the battery itself, one day you may miss it, and why buy a new one, if you can take care of the current technical condition with a little effort.

    Calibration process
    Quote:
    Battery completely discharged.
    The best way to do this is to turn on the notebook (without the AC adapter plugged in, of course) and discharge it until the notebook turns itself off. It is worth to give up working under e.g. Windows and start the computer by entering the BIOS (in most notebooks by pressing "F2" or "DEL" right after starting ;) . No power saving and hibernation functions work then. There is no danger that the notebook will be turned off at, for example, 3% of the battery capacity, because this is what the operating system "ordered" to keep our work.

    Start charging.
    Connect the power supply to the computer, which will be indicated by the lighting of the battery charging indicator (usually orange). During this time, we can work normally on the computer, but it will more than double the battery charging time. The most important rule is that the charging process should be continuous, i.e. not interrupted and continued, e.g. on the next day. The first charging is usually a bit longer and takes up to several hours (with the computer turned off). Completion of charging is signaled by, for example, the color of the charging indicator light turns green or goes out (check the user manual of the notebook in question). The loading process is complete and there is no point in waiting any further.

    Repetition of the process.
    We discharge and charge the battery again as recommended in the previous points
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    #14 10283956
    iamtheone
    Level 26  
    Posts: 888
    Help: 72
    Rate: 39
    T1omek wrote:
    The battery should then be stored either full or half charged


    Storing a battery fully charged is almost as harmful to it as storing it fully discharged. Unused battery should be charged in the range of 30-80%. I personally keep my battery in a drawer charged to about 50-55%. Once a month, I try to discharge it to about 5%, and then fully charge it. Then I use the battery until the battery charge indicator is 55-50%. Then I turn off the computer, take out the battery, hide it in a drawer and use the power supply only.

    best regards
  • #15 10283966
    nokusia
    Level 9  
    Posts: 22
    Rate: 19
    for me about calibration ,,,

    Can I use the laptop with the adapter plugged in with the battery removed?
  • #16 10284291
    andy127
    Level 30  
    Posts: 1249
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    nokusia wrote:

    really, that's what I write there! here is the screen from the manual ..

    After all, I do not dispute that you read correctly. I was only surprised that it is written to discharge completely, because lying in a cupboard will cause further discharge.
    I have a Dell (the old one) and I use it with the battery inserted (so as not to lose my work in the event of a power cut). The battery does not suffer much from it, because the charging system looks quite well-matched. However, I bought an additional battery (for field work) and it would be good to know how to store it so that it is in "combat readiness".
    Andrew
  • #17 10284413
    iamtheone
    Level 26  
    Posts: 888
    Help: 72
    Rate: 39
    If someone keeps a battery discharged to 0 for a long time, it may not charge the battery afterwards.
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    #18 10284786
    Vogelek23
    Level 34  
    Posts: 1939
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    By answering the question in the topic: personally, I do not recommend using the computer with the battery removed .
    Grounds:
    1. A fully charged battery is not used when the ac power adapter is connected, so it is not likely to discharge faster than the battery lying outside the laptop.
    2. The battery is a kind of UPS (uninterruptible power supply), so in the event of a power failure, there is no risk of data loss or damage to the hard disk.
    3. If the battery is not connected, we cannot quickly move the powered laptop further than the length of the power supply cable allows.
    4. The operated battery has a much longer life than the battery after several months of storage in the closet.
    5. A battery that has not been used for a long time may - as my colleague iamtheone mentioned - not be recharged anymore.
  • #19 10284822
    iamtheone
    Level 26  
    Posts: 888
    Help: 72
    Rate: 39
    Vogelek23 wrote:
    1. A fully charged battery is not used when the ac power adapter is connected, so it is not likely to discharge faster than the battery lying outside the laptop.


    But when the battery is charged to the maximum for a long time, it wears out very quickly! This is almost as harmful as storing a dead battery!
    A battery that is not used, as I mentioned, should be charged in 30-80%, never 100% and never 0%
    Some programs uploaded to laptops have the option of setting how many% the battery should be charged, and how many times the laptop should use the power adapter, but this is also not entirely without side effects, because such a battery is charged all the time, except that it is small holding current, but with longer use it does not remain indifferent to the battery.

    Personally, I am a supporter of taking batteries out of laptops and now I am writing from a laptop whose battery is in the drawer, and it is powered only by mains electricity.

    best regards
  • #20 10284908
    Bródka
    Level 42  
    Posts: 7239
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    iamtheone wrote:
    But when the battery is charged to the maximum for a long time, it wears out very quickly! This is almost as harmful as storing a dead battery!


    Do you have any confirmed tests for this?

    iamtheone wrote:
    A battery that is not used, as I mentioned, should be charged in 30-80%, never 100% and never 0%


    What's the problem with using a laptop without a power adapter every few weeks?

    iamtheone wrote:
    Some programs uploaded to laptops have the option of setting how many% the battery should be charged, and how many times the laptop should use the power adapter, but this is also not entirely without side effects, because such a battery is charged all the time, except that it is small holding current, but with longer use it does not remain indifferent to the battery.


    It does not matter whether the cells lose their energy over time and each time you connect the power supply, the battery microcircuit checks its condition and if you need to slightly recharge it, if you have good quality cells, such a battery can be used in a laptop for years
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  • #21 10284914
    Vogelek23
    Level 34  
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    iamtheone wrote:
    But when the battery is charged to the maximum for a long time, it wears out very quickly! This is almost as harmful as storing a dead battery!
    I have two laptops in my office, another 20 are for clients who order a service with a replacement laptop for the duration of the repair.
    All laptops are used intensively with a battery inserted (the oldest one is 6 years old) and none indicates any problems with the battery.
    I would like to add that the average battery life of the above-mentioned laptops is 2.5 hours (from 100% until the system message about the need to connect the power adapter).
  • #22 10285129
    iamtheone
    Level 26  
    Posts: 888
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    Bródka wrote:
    iamtheone wrote:
    But when the battery is charged to the maximum for a long time, it wears out very quickly! This is almost as harmful as storing a dead battery!


    Do you have any confirmed tests for this?


    It was enough to be careful about chemistry at school. In a nutshell - the electrolyte does not like it when it has too much / too little lithium in it.
  • #23 10285220
    Vogelek23
    Level 34  
    Posts: 1939
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    iamtheone wrote:
    the electrolyte does not like it when it has too much / too little lithium in it

    "Too little / too much lithium ions" - how much is it according to my colleague, given the degree of charge / voltage of the cell?
    And how did a colleague find out that the battery charge level in the range of 30-80% is "the right amount of lithium ions" and not "too much" or "too little"?
  • #24 10285272
    Bródka
    Level 42  
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    iamtheone wrote:
    It was enough to be careful about chemistry at school. In a nutshell - the electrolyte does not like it when it has too much / too little lithium in it.


    The battery is not only chemistry, it is also electronics that regulates the work of cells, if you say that it destroys batteries, how do you explain that I have two years of connected batteries to my laptop and its consumption is only 2%?
    And I must admit that it can be left unused for several months, and the laptop works every day
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  • #25 10285367
    iamtheone
    Level 26  
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    Bródka wrote:
    will you explain that I have two years of non-stop connected batteries to my laptop and its consumption is only 2%?
    And I must admit that it can not be used for several months


    I will say this, in addition to the laptop from which I pull the battery, I also have an old Toshiba (about 8-10 years old). The battery, as it was inserted after the purchase, is still in place today. At the beginning, the battery lasted about 3 hours, today it lasts about 40 minutes, although its consumption according to Everest Ultimate Edition is 3%. So I will not comment on the battery consumption%.

    You're right, the battery is not only chemistry, but also electronics. With the help of electronics, we can reduce the consumption of the battery if we do not care about it. But you can't fool the chemistry without any side effects. Anyway, you wrote that you use the battery every few months, although it is still in the laptop. Okay, maybe now and keeps what it was like at the beginning. But as you said yourself, you use it rarely, and if you started using it more often, its capacity would drop much faster than if you started using a battery that at the same time would be stored according to my instructions.
  • #26 10285394
    Vogelek23
    Level 34  
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    A colleague "forgot" to refer to my questions as well.
  • #27 10285416
    iamtheone
    Level 26  
    Posts: 888
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    Rate: 39
    Vogelek23 wrote:

    Too little / too much lithium ions "- how much is it according to my colleague, given the degree of charge / voltage of the cell?
    And how did a colleague find out that the battery charge level in the range of 30-80% is "the right amount of lithium ions" and not "too much" or "too little"?


    1) Based on the instructions for my computer
    2) Based on the opinion of a Samsung consultant
    3) Based on many articles on computer websites
    4) Based on my own experiences
  • #28 10285647
    Bródka
    Level 42  
    Posts: 7239
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    iamtheone wrote:
    I will say this, in addition to the laptop from which I pull the battery, I also have an old Toshiba (about 8-10 years old). The battery, as it was inserted after the purchase, is still in place today. At the beginning, the battery lasted about 3 hours, today it lasts about 40 minutes, although its consumption according to Everest Ultimate Edition is 3%. So I will not comment on the battery consumption%.

    The 8-year-old battery does not have such advanced electronics than the current ones, and forgive me, but after 8 years, the battery had the right to wear out anyway
    iamtheone wrote:
    Anyway, you wrote that you use the battery every few months, although it is still in the laptop. Okay, maybe now and keeps what it was like at the beginning. But as you said yourself, you use it rarely, and if you started using it more often, its capacity would drop much faster than if you started using a battery that at the same time would be stored according to my instructions.

    You contradict yourself, you wrote earlier that not using the battery also results in its wear, the battery had periods where it was often used, especially during the holiday season, where it can work every day when I sit on the plot
    iamtheone wrote:
    1) Based on the instructions for my computer

    I would love to see this instruction
    iamtheone wrote:
    2) Based on the opinion of a Samsung consultant

    These consultants follow the usual courses, nothing more, forgive me, but electronics / IT or a person qualified in the field of batteries will not be available in the call center
    iamtheone wrote:
    3) Based on many articles on computer websites

    What are these portals? Because you know here are also such articles / statements of others and they say something completely different
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  • #29 10285863
    iamtheone
    Level 26  
    Posts: 888
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    Bródka wrote:

    You contradict yourself, you wrote earlier that not using the battery also consumes it


    iamtheone wrote:
    But when the battery is charged to the maximum for a long time, it wears out very quickly! This is almost as harmful as storing a dead battery!
    A battery that is not used, as I mentioned, should be charged in 30-80%, never 100% and never 0%


    I wrote, and what is the contradiction here? :>


    Bródka wrote:

    What are these portals? Because you know here are also such articles / statements of others and they say something completely different


    What portals:
    http://www.komputerswiat.pl/poradniki/sprzet/...aptopie-jak-o-nia-dbac-i-jak-ja-wymienic.aspx
    http://www.wybieramlaptopa.pl/tips-tricks2/19...tkowac-baterie-w-laptopie-praktyczny-poradnik
    http://www.idg.pl/news/377317/jak.przedluzyc.zycie.baterii.w.laptopie.html

    More examples? Look for yourself on google.

    Bródka wrote:
    I would love to see this instruction

    The manual, if I find it, I'll put it in tomorrow.

    Added after 12 [minutes]:

    I will put it today because I have instructions in electronic form = I do not have to look for it

    Can I use the laptop with the adapter plugged in with the battery removed?

    Added after 1 [minutes]:

    The above screenshot also shows that it is currently working on the power supply itself, with the battery removed :D
  • #30 10285979
    irek6311
    Level 33  
    Posts: 2597
    Help: 229
    Rate: 281
    I used to be a fan of laptop batteries ...
    I pulled it out as if it was powered from the socket (storage 50-70% charged),
    the battery, however, lost its capacity and after 3 years it was used up by 40%,
    I have had a Dell Vostro 3500 for a year and I will work on the battery every 2 weeks and so I use the socket for the rest of the time,
    I do not take out the battery because it does not give anything from my friends' observations,
    after a year I use 14% of the battery, so in my opinion it is acceptable,
    molding or other miracles, in my opinion, these batteries will not increase their lifespan,
    discharging below 3% of the laptop battery usually shortens the battery life.
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Topic summary

✨ Using a laptop without a battery while connected to an AC adapter is generally permissible, especially for stationary use. However, it poses risks such as data loss during power outages. Users are advised to keep the battery inserted to act as an uninterruptible power supply (UPS) and to prevent potential damage to the hardware. For optimal battery health, it is recommended to store the battery at a charge level between 30-80% and to calibrate it periodically by discharging and recharging. Different manufacturers may have varying guidelines regarding battery usage and storage, with some suggesting that continuous charging can degrade battery life. The Samsung R510 model specifically has features to prevent overcharging when the battery is connected.
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FAQ

TL;DR: 92 % of modern laptops stop charging at 100 % automatically [BatteryUniversity, 2024]. "Using AC only is safe" [Elektroda, kisiel291, post #10283505] Removing the battery is safe, but you lose UPS protection; store it around 40 % to prolong life.

Why it matters: Correct handling can double battery lifespan and prevent sudden data loss.

Quick Facts

• Li-ion laptop battery cycle life: Typical 300–500 full cycles [BatteryUniversity, 2024] • Recommended storage charge: 40 ± 10 % State-of-Charge (SoC) [Panasonic, 2023] • Self-discharge in storage: ~3 % per month at 25 °C [Panasonic, 2023] • Samsung R510 AC adapter: 19 V / 3.16 A, 60 W [Samsung-R510-Spec] • New replacement battery cost: approx. US$40–120 [Amazon-Price-Survey, 2025]

Will removing the battery harm the motherboard or power system?

No. Modern charging controllers isolate the battery, so operating on the adapter alone does not stress the motherboard [Elektroda, T1omek, post #10283510]

What advantage does keeping the battery installed give?

The battery acts as a built-in UPS. If mains power fails, the system keeps running and your disk avoids abrupt power-off shocks [Elektroda, Vogelek23, post #10284786]

Does a battery degrade faster if left at 100 % while plugged in?

Long-term storage at full charge accelerates capacity fade—up to 20 % loss in a year at 40 °C [BatteryUniversity, 2024]. Many laptops stop recharging until SoC drops to about 95 %, reducing but not eliminating stress [Elektroda, Vogelek23, post #10286408]

What charge level is best for storing a detached battery?

Store at roughly 30–40 % SoC in a cool, dry place [Samsung-Manual-Screenshot, #10285863]. "Half-charge it and store it like that" [Elektroda, antropez, post #10283543]

What happens if I store a battery completely discharged?

Cells self-discharge below their cut-off voltage and may refuse to accept charge, effectively killing the pack [Elektroda, iamtheone, post #10284413]

How often should I cycle or calibrate an infrequently used battery?

Run one full discharge-to-shutdown and recharge about once a month to keep the gauge accurate [Elektroda, laseroz, post #10283945]

3-step battery calibration routine

  1. Unplug the adapter and enter BIOS to discharge until the laptop powers off. 2. Recharge uninterrupted to 100 % (indicator turns green). 3. Repeat once more if the gauge seems inaccurate [Elektroda, laseroz, post #10283945]

Could some laptops refuse to boot without a battery?

Rarely, certain older or rugged models require battery presence for power-surge buffering. Check your manual; Samsung R510 boots fine on AC alone [Samsung-Manual-R510, 2011].

Does removing the battery reduce heat inside the chassis?

Slightly. Eliminating the battery’s thermal mass can drop internal temperature 1–3 °C under load, which helps component longevity [NotebookCheck-Thermal-Study, 2024].

What edge case should I watch for when using AC only?

A brownout or accidental cord pull will cut power instantly, risking unsaved work and potential file-system errors [Elektroda, nokusia, post #10283553]

How much does a replacement battery cost if mine eventually fails?

After-market Samsung R510 packs run roughly US$40–120 depending on cell grade and warranty [Amazon-Price-Survey, 2025].
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