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Is it better to use a laptop on battery or on AC power?

I have HP dv6 i7 and I work on it for almost 15 hours constantly. Due to power problems in my area because of electricity load shedding, I keep my laptop plugged to power even when the battery is fully charged.

  • Is it safe to keep my laptop plugged in all the time?
  • Is it safe to use my laptop for 15 hours every day?
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marked as duplicate by Mehper C. Palavuzlar, Mokubai, soandos, 8088, Dave M Aug 12 '12 at 12:48

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3 Answers 3

Plugged in all day: - It's a complicated question, with even more complicated answers, since different manufacturers give slightly different answers: Lenovo and Dell reportedly say your battery should be fine if your computer stays plugged in; HP says you should remove the battery if you are running on AC power for weeks at a time; Apple suggests you should unplug and run off the battery every once in a while.

Safe to use for 15 hours a day - Yes. As long as you have it properly ventilated e.g not on a bed or something else that would block the vents.

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I am using it on a hard table. –  Alfred James Aug 12 '12 at 9:56
    
Did You give the link to the website where you found the battery info may be there is more useful info for me. –  Alfred James Aug 12 '12 at 9:57
    
@AlfredJames. Link - zdnet.com/blog/gadgetreviews/…. Table should be fine for ventilation. –  Joe Taylor Aug 12 '12 at 17:39

I wouldn't recommend leaving a battery overcharging all the time, I would decharge at least once a week to refresh the charge. In saying that, i wouldn't do a complete decharge only to 10-15%.

Once a month perform a complete decharge and overnight recharge.

I would recommend getting a UPS which will assist in keeping the power clean, backup power available and you can maybe limit the time on charge.

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Laptop plugged all the time is completely safe but it is reduces your battery life.
Try to discharge once a week.
You can also try Lifetime optimizer that will keep your battery always at 70%-80% and it will never be fully charged.
And for laptop to use 15 hours a day is also totally safe.

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