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    FAQs about laptop batteries

    Frequently asked questions about laptop batteries

    We’ve put together a few tips in the form of this FAQ page to help you choose and care for your laptop or netbook battery. If your question is not answered here, please feel free to contact us on customerservice@allbatteries.co.uk. We’re happy to help!

    Where do I find my battery’s part number?

    What are laptop batteries made of?

    How long will my laptop battery last?

    Do I have to fully charge my laptop battery they first time I use it?

    If I disconnect my charger before the battery is fully charged, will this damage my battery?

    Will my battery be damaged if I leave it plugged in?

    What can I do help my laptop batteries last longer?

    If my laptop battery is 14.4V, can I use a 14.8V battery?

     

    What are laptop batteries made of?

    This type of application uses a lithium chemistry commonly known as Lithium ion. This technology has a higher energy density which means it carries a greater amount of energy in a smaller package. This makes it possible to make these batteries smaller and lighter. This technology is not plagued by the dreaded “memory effect” and has a very low self-discharge rate.

     

    How long will my laptop battery last?

    It’s difficult to say as it depends on how the machine is used. If you watch a lot of videos or use applications which require a lot of energy to run, the battery will not last as long as if the machine is only used for word processing or writing emails etc. What we can say is that the lithium ion technology has a lifetime which is limited to between 500 and 1000 cycles and an average duration of 3 years.

     

    Do I have to fully charge my laptop battery they first time I use it?

    No that’s not necessary. You can use the battery until fully discharged and then charge it up properly. It used to be necessary to fully charge laptop batteries when they were made of nickel.

     

    If I disconnect my charger before the battery is fully charged, will this damage my battery?

    No. The lithium ion technology can tolerate interruptions in charging without any issues because it doesn’t suffer from the memory effect.

     

    Will my battery be damaged if I leave it plugged in?

    No, laptop chargers and power supplies are equipped with a cut off system which stops the charge when the PCM or the overcharging circuit detects that it has completed.

     

    What can I do help my laptop batteries last longer?

    Now that you’ve bought your laptop battery, we’re sure you want to go ahead and use it. Here are a few important tips to help you maintain the “health” of your battery.

    • Do not subject the laptop battery to high temperatures: extreme heat affects the battery’s performance as much as extreme cold (-15º/+50º).
    • Do not make it a habit of letting the battery go completely flat. As soon as it drops to 15%, put the battery on charge.
    • If you need to store the battery, ensure that it is at least 50% charged.
    • Calibrate your laptop battery roughly every 3 months.

     

    If my laptop battery is 14.4V, can I use a 14.8V battery?

    Yes, you can. The same is true if you have a 10.8V battery and you want to replace it with one which is 11.1V. This is because batteries are rated based on their nominal voltage or maximum voltage. The manufacturer can refer to either of these ratings. What you wouldn’t want to do is to replace a 10.8V battery with a 14.4V battery or vice versa because the PCM or the overcharging or overvoltage protection system will not allow the device to detect the battery and it will not work.

    We hope these tips are useful. Now that you’ve got some more information, go get your laptop battery! We also have laptop chargers if you need one too.

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