Should I take the battery out of my laptop when running on mains power?

//Should I take the battery out of my laptop when running on mains power?

Should I take the battery out of my laptop when running on mains power?

Question by : Should I take the battery out of my laptop when running on mains power?
My French housemate told me that if I leave the battery in my laptop when it is fully charged and I am running on mains power it will ruin the battery. I don’t believe him, and now we have a bet. Who’s right?

Best answer:

Answer by Tony
When using a laptop as a desktop replacement the battery should not be left in for long periods of time. The laptop will over time discharge the battery. Remove the battery – making sure that it is charged to 40% and store it in a dry, warm place. Ensure that it is wrapped protectively and nothing will be dropped on it.
The battery should be re-installed every 3-4 weeks and allowed to fully discharge. Leaving a battery in storage for longer than this without using could cause the battery to fully discharge as the circuitry of the battery itself consumes power.
Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant state of charging up and that will reduce the life cycle of the battery.

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By | 2013-08-14T13:25:07+00:00 August 14th, 2013|Todays Smart Phone Technologies|1 Comment

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One Comment

  1. Khalid A August 14, 2013 at 2:05 pm

    WOW!!! I cant believe how many people still believe this load of crap! Leaving in a battery while charging will not leave your battery in a state of constant charge. Let me tell you a story…Back in the mid-90’s back when mobile phones still used NiCd batteries, people used to have to keep an eye on their charge status so that one wouldnt over charge the battery. This was because neither chargers nor accessories had the capabilities to realise that the battery has been fully charged so that it could stop charging. Also maintenance was required because NiCd batteries exhibit the “memory effect” in which the charge capacity and time would deplete over time. After this ill effect was noticed by everyone, and customers complained enough about this; the scientist finally came up with solutions, the LithiumIon battery and the smart charger or internal charge detection programming directly in the hardware of the accessory that is being charged. This allowed some new options. In smart chargers, the charger would detect when the battery is full and would stop charging – only pulling power if extra is needed, such as when the device is powered on while being plugged in. Another option – the device itself detects the battery’s status and charges as needed or redirects power to the main components rather than to the battery – which is most common in devices such as computers, handheld video gaming (like the Nintendo DSi), video cameras and the like. LithiumIon batteries also require maintenance, but no where as much as a NiCD battery, since the Lithium battery has negligible memory. Any heat dispersion causes a battery to decrease in performance. So in technicality, any usage of your computer, whether plugged in or not decreases your battery performance. Yes if you leave your laptop plugged in, your battery will decrease over time, but the performance you will be saving by pulling the battery all the time is negligible and cannot be noticed even after a year of use. Yes the fact that one had to unplug things USED to be true, but nowdays, everything has a smart charger or internal programming to prevent overcharging. This is like airbags, used to be an option, now its all standard. So now that statement is a farce with todays technology. Believe me, I have had my laptop plugged in for over a year now and when i bought it it would say 5 hrs 57 min when fully charged and now it says 5 hrs 42 min when fully charged, so i assume you can do the math yourself. Plus ive had a Nintendo DS that i have NEVER, (yes really) turned off. I playYuGiOh and RPG’s on it and when i bought the DS lite when it came out on day one, i have never turned it off. I have only used sleep mode and always threw it on the charger whenever im by an outlet, and leave it charging when im not or if i am playing. Now ive begun the same thing with my DSi and tell you the truth, my DS still holds a 4.2 hour charge on full brightness (the charge when brand new is 4-6 hours) and the DS has been out for a looong time. To be safe i would ask the company of whatever device you question, but when it comes to something like a laptop, they are all the same. Theres a reason why when its charging it says that its charging and when the battery is charged and one is still using it plugged in, that it says fully charged or whatever. It doesnt still say that its charging does it? There you go!

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