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Battery life and maintenance.

post #1 of 12
Thread Starter 
Hey all

have just bought myself a nice shiny toshiba q70 for 599euros
and I adore it.

I am not used to spending alot of money to electronics, and I always take care of everything (I'm like the guy that keeps the plastic protection cover on for a year or so )

Now I have searched the internet for a while, looking for tips about (li-ion) battery, how to maintain them, keep battery life good for a while.

Most of the things I found were some pretty divided opinions where everyone wasn't sure. Even sites said different things of which i am not sure what to believe.

So let's be done with it.
What are the real tricks to spare your battery life? WHAT IS THE TRUTH ?
(plz links are just as fine, I would feel guilty if you wrote everything down)

My main question is: Does it harm to use a laptop while charging it (and fully charged). Some say I need to take out the battery, some say that it's fine as long as is isn't hot, because the laptop will automatically swithc to the input and leave the full battery alone? Or will the laptop run of the charger and the charger keeps filling the battery every time it drops a percent?

Help and some clearification would be very much appreciated

Thanks to you all and
Merry christmas for all of you soon.

Llama16
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post #2 of 12
Here is what I do with a new battery. I plug it in and let it charge for 24Hrs. I then use it on battery power until it powers down. I do this full charge and discharge 5 times. This helps establish the battery memory.

Then when I use the laptop, I try to let the battery run down as much as possible before plugging it in. The reason is that the battery only has so many cycle charges. So if you use it on battery and use up 15%, plugging it into the wall will charge it up and basically count as a cycle. The worst thing you can do to a laptop battery is to leave it connected while the laptop is plugged into the wall.
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post #3 of 12
Thread Starter 
I think you are talking about non Li-ion batteries. they don't have memory.
People said to me that with LI-Ion batteries the worst you can do is let them fully discharge.

I'm pretty sure that i'm right about this. Li-Ion isn't memory sensitive.
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post #4 of 12
Quote:
Originally Posted by ericeod View Post
Here is what I do with a new battery. I plug it in and let it charge for 24Hrs. I then use it on battery power until it powers down. I do this full charge and discharge 5 times. This helps establish the battery memory.

Then when I use the laptop, I try to let the battery run down as much as possible before plugging it in. The reason is that the battery only has so many cycle charges. So if you use it on battery and use up 15%, plugging it into the wall will charge it up and basically count as a cycle. The worst thing you can do to a laptop battery is to leave it connected while the laptop is plugged into the wall.
Thanks for the tip.

Why is that though?
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post #5 of 12
Quote:
Originally Posted by Unknownm View Post
Thanks for the tip.

Why is that though?
The constant charging of the battery will reduce the overall charge capacity.
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post #6 of 12
Thread Starter 
Ar you guys really talking about li-ion battries (not memory sensitive --> no cycles) or about the basic lead-acid battery (memory sensitive --> cycles used (as a term) )
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post #7 of 12
Quote:
Originally Posted by ericeod View Post
Here is what I do with a new battery. I plug it in and let it charge for 24Hrs. I then use it on battery power until it powers down. I do this full charge and discharge 5 times. This helps establish the battery memory.

Then when I use the laptop, I try to let the battery run down as much as possible before plugging it in. The reason is that the battery only has so many cycle charges. So if you use it on battery and use up 15%, plugging it into the wall will charge it up and basically count as a cycle. The worst thing you can do to a laptop battery is to leave it connected while the laptop is plugged into the wall.
actually, most companies already did the 24 hour charge for you before selling it. also all rechargable batteries has a limited charge cycle. the only reason you want to discharge the battery fully before charging it again is because sometimes the device doesn't read the battery life correctly.

Quote:
Originally Posted by llama16 View Post
I think you are talking about non Li-ion batteries. they don't have memory.
People said to me that with LI-Ion batteries the worst you can do is let them fully discharge.

I'm pretty sure that i'm right about this. Li-Ion isn't memory sensitive.
the best thing to do is let the battery fully discharge before charging it again. the reason some people say not to fully discharge it is because some li-ion batteries are not protected by a circuit. if li-ion batteries fall below a current voltage you will never be able to charge it again. but protected li-ion batteries will never fall below this voltage or rarely falls below this voltage.

Quote:
Originally Posted by ericeod View Post
The constant charging of the battery will reduce the overall charge capacity.
since all rechargeable batteries have a cycle limit, this doesn't count as a way to reduce overall capacity. so nope they only lose charge capacity as it ages. temperature and humidity can also affect battery life but this applies to all batteries so it also doesn't count as a way to reduce li-ion life.
Edited by krazieaznboi - 12/18/08 at 1:53am
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post #8 of 12
Thread Starter 
k thanks krazieanznboi

at last, a helpfull answer (thank the rest though )

But isn't it true that you need to discharge it full every 30 (full or nor full) charges. This would help the 'calibration' of the battery
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post #9 of 12
what i do is fully discharge it every week or 2 week. this only helps the device read the battery more accurately. i do this with my cellphone, psp, asus eee, gps, etc.

so if this is what you mean by "calibrating" the battery than yes.
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post #10 of 12
Thread Starter 
yep that's exactly what i mean.
ATM I took the battery (40% charged) out of the laptop when I am using power from the plug
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