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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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  • #31 10285995
    Vogelek23
    Level 34  
    Posts: 1939
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    iamtheone wrote:
    I will put in today because I have the manual in electronic form
    The instructions show that the battery should be charged, but not to drop the self-discharge below 30-40%. Because how else to interpret this passage:
    Quote:
    keep it after charging in a state of 30 to 40% of its charge

    ?
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  • #32 10286039
    iamtheone
    Level 26  
    Posts: 888
    Help: 72
    Rate: 39
    Vogelek23 wrote:
    iamtheone wrote:
    I will post today because the instructions are in electronic form
    The instructions show that the battery should be charged, but not to drop the self-discharge below 30-40%. Because how else to interpret this passage:
    Quote:
    keep it after charging in a state of 30 to 40% of its charge

    ???


    That the battery during storage should be charged in the state of 30-40%.
    I do not know what to interpret here, you have it clearly written.

    Meanwhile, good night.
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  • #33 10286093
    Vogelek23
    Level 34  
    Posts: 1939
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    Rate: 82
    iamtheone wrote:
    you have it clearly written
    Well, not really, maybe it is a colleague who has a problem with understanding the written text?
    If it had been written "please keep it after recharging to condition from 30 to 40% of its charge " that would be clear and indisputable.
    However, what is actually written in the manual cannot be interpreted in this way, unfortunately, as my colleague wrote.
  • #34 10286254
    iamtheone
    Level 26  
    Posts: 888
    Help: 72
    Rate: 39
    You can also charge it to 100% and then discharge it to 30-40 and everything is fine:> And I have no problems with reading comprehension, but rather a 'friend' with logical thinking.
    If you have any doubts about the `` interpretation '' of the instructions, I encourage you to write to Samsung :)
  • #35 10286361
    Bródka
    Level 42  
    Posts: 7239
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    iamtheone wrote:
    I wrote, and what is the contradiction here? :>

    After all, what consumes it more by not using or using it?
    iamtheone wrote:
    I will put it today because I have instructions in electronic form = I do not have to look for it

    I meant more about the values:
    iamtheone wrote:
    the electrolyte does not like it when it has too much / too little lithium ions in it.

    Because on what basis do you think that a charged battery wears out quickly?
    iamtheone wrote:

    And you read at least these pseudo articles because the one from IDG and I choose a laptop is simply ridiculous, the editor's arguments without any evidence, the rest of these articles do not say unequivocally to remove or leave the batteries, the one from the world computer is also no article and read the comments in these "articles", also this:
    Quote:
    Continuous operation with the connected power supply is very disadvantageous for the battery. The battery is then frequently recharged in short cycles - if the energy level drops to 95 percent, for example, charging begins.

    do you know how much it takes for the battery power to drop to 95% when idle?
    Certainly not overnight, if the battery has good cells, they keep energy for a long time and the battery does not require recharging at all
    Helpful post? Buy me a coffee.
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  • #36 10286408
    Vogelek23
    Level 34  
    Posts: 1939
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    Rate: 82
    iamtheone wrote:
    You can also charge it to 100% and then discharge it to 30-40 and everything is fine
    Perhaps let other colleagues assess the sense of the sentence in the instructions and confirm (or disprove) the logic of thinking of the colleague (and mine, by the way). I stand by my side, believing that the logic of my colleagues is very twisted in this matter.

    iamtheone wrote:
    If you have any doubts about the `` interpretation '' of the instructions, I encourage you to write to Samsung
    No, thanks. I know a lot of these Samsung service consultants who graduated from a technical college, as well as a tailor's school.

    ----- EDIT -----

    If a colleague had any doubts as to the correctness of MY interpretation of the text in the manual - here is a thread on how the loading control systems work in modern constructions: https://www.elektroda.pl/rtvforum/topic2167999.html
    It follows clearly that if we have a fully charged battery and the degree of its charge (with continuous operation on the power supply) will drop below 50-60% over time, only then recharging is started.
    Therefore, the phenomenon of cyclical recharging of the battery with a 3% decrease in the degree of charge no longer occurs here.
  • #37 10288297
    iamtheone
    Level 26  
    Posts: 888
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    Vogelek23 wrote:
    It follows clearly that if we have a fully charged battery and the degree of its charge (with continuous operation on the power supply) will drop below 50-60% over time, only then recharging is started.


    Yes, but it does not change the fact that the battery is recharged quite often then, and this is probably not good for the health of the battery.
    In my opinion, it is better not to use the battery if it is not necessary.

    Bródka wrote:

    After all, what consumes it more by not using or using it?

    It depends on the way we treat our battery. Surely the worst option for a battery is to store it completely discharged. Then we can say that not using it is harmful. But it is also a bad option to keep the battery in the laptop all the time if we are "driving on the power adapter" all the time. Wear and tear cannot even be prevented by "electronics", that is, limiting punching charging cycles, although this wear may slow it down. Then we can say that use is harmful to the battery.
    In my opinion and the instructions for my computer (I will not mention consultants and portals because I see that you have some trauma to them), the best way to minimize battery consumption is to remove it and store it in a 30-40% charged state (it is admitted that earlier I overestimated these "forks" saying that the battery should be charged in 30% -80% during storage).

    Bródka wrote:
    I meant more about the values:
    iamtheone wrote:
    the electrolyte does not like it when it has too much / too little lithium ions in it.

    What, should I count them? ;>
  • #38 10288343
    artaa
    Level 43  
    Posts: 15050
    Help: 1811
    Rate: 1683
    In conclusion, these lengthy arguments
    1.everything wears out when used, aka ...
    2. Accumulator batteries have a certain number of cycles to withstand
    3.the way of use affects the durability of everything, aka ...

    4.Backing back to the merits:
    "Can I use the laptop with the AC adapter plugged in with the battery removed?"
    YES

    and EOT.
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  • #39 10288371
    nokusia
    Level 9  
    Posts: 22
    Rate: 19
    As I wrote above, I started the topic :D

    I will "work" on the power supply and the battery will be inserted. Sometimes it is ... every two weeks I disconnect the power supply and let the battery discharge to about 30% and connect the power supply again, etc ...

    Thank you for writing so much here, but I already know what's going on and I'm thinking about closing the topic :)

    Added after 1 [minutes]:

    artaa wrote:
    4.Backing back to the merits:
    "Can I use the laptop with the AC adapter plugged in with the battery removed?"
    YES
    OK, I also think about it more or less :)

    I greet everyone!


    EDIT; on 2013.06.08

    All the time I adhere to what I wrote above in my post. I just wanted to add that after disconnecting the power supply, the battery keeps me about 1 hour and 25 minutes, which is so many years and I can at least recommend it to everyone in this model of a Samsung laptop. ;-)

    Best regards .

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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