I have heard it is not a good idea to just leave a notebook plugged in, that it is better to run the battery down and then plug it back in, charge it up, then unplug it again, etc. The problem is that that is a pain. How much damage am I doing if I just leave my T60 plugged in?
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None. Where do you read things that like it's bad to leave your battery plugged in? That's completely nonsense.
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its actually good it doesnt overcharge it or anything where did you hear that from?
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masterchef341 The guy from The Notebook
leaving it plugged in doesn't damage the battery. Your battery is smart enough to know that it is charged to capacity and stop.
The only thing that could even possibly damage the battery is the fact that all the components run at full speed when you are plugged in- more heat is generated - and heat is not good for the battery.
the difference is nominal though.
personally, i remove the battery for gaming or other intensive tasks where i know the machine is going to heat up. -
Thanks. I think I read it somewhere on this website! I have been told the same thing for my Ipod, but that could be a different dynamic.
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in my experience in a laptop run high school, the students who left theirs plugged in for three years straight have very poor battery time when unplugged, and me, and the other few students who let it drain had very good battery time when unplugged. we where all running thinkpad r51 systems. for three years, my battery still gets me 2 hours and 10 min, and i would let it drainand recharge at least once a day
maybe i am missing something, but that is how it worked for me -
I hear from my friend that most modern notebooks have an auto-cut function, similar to the rechargable batteries's charger on the wall socket. Although it is generally not a good idea to leave it plugged for too long?
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If you're constantly using your thinkpad on AC then it's a good idea to remove the battery and just put it away in a fridge to keep the degrading process at a minimal. Heat is what kills the battery.
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PS. the only possible benefit of a complete discharge & recharge would be to recalibrate the battery meter. -
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Oh I just love this subject!
Yes, it is harmful to leave your laptop plugged in all the time if you are not going to use the battery
Did someone not hear me? Yes, it is. Why? Because the battery degrades faster at higher voltage.
The very best thing you can do for your battery if you will not be using it for a while is charge it to 40% and put it in the refrigerator.
There are two factors which contribute to the speed at which a battery will degrade: charge level and heat. Nominal charge level for extended battery life is about 40%, and heat is about 0C or 32F. At those conditions, you lose about 2% capacity per year. Look at the wikipedia link below for a table.
Everyone who disagrees please look at wikipedia and please do research. -
If I'm not mistaken, masterchef341 may have posted something once which I missed, too. Damn, and I was listening to his every word. -
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The proper method is to leave the notebook plugged in as much as possible. If you won't be using the battery at all for at least a month, charge it to 75% and store it in a cool (40-50 degrees) place. Once every 2-3 months, deep cycle the battery so as to recalibrate the battery gauge.
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Good to see someone else knows what they're talking about, unlike redmaxx. -
redmaxx said: ↑aboutblank said: ↑Please get a reliable source. Look at http://www.batteryuniversity.com/parttwo-34.htm for someone who knows exactly what they are talking about. I don't know about deep cycling, but the recommended way of preserving a li-ion if you aren't going to use it is charge it to about 40% and put it in the refrigerator.
Yes, I agree, but only if you aren't going to use it for a long time.
You said that was a reason not to leave it plugged in all the time. Which obviously isn't true, because it quits charging the battery when it is full.Click to expand...Click to expand... -
espo412 said: ↑redmaxx said: ↑What you don't get is that the computer will keep topping off the charge to keep it at 100%, which is not the ideal storage charge level. I left my old computer plugged in 95% of the time with the battery in. At first the battery lasted about 2 hours, after about 1.5 years it barely lasted half an hour, now after 5 years it lasts about 5 minutes.Click to expand...Click to expand...
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If my method is so bad, then why has mine only lost 36% of it's life in the 3.5 years I've had it? That's a little more than 10% per year.
Battery life if leave plugged in
Discussion in 'Lenovo' started by diver110, Jun 29, 2007.