Nismo
Member
Registered: 12th Sep 02
User status: Offline
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Yo ma-hommies
My laptop battery lasts like 30 secons , cant even login to it.
But if i run it on mains AC power its fine?
we gonna say its fubbared?
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SteveW
Member
Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline
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erm yeah.. it be fubar mate
have had a few come into the workshop like this.. gotta order new one dude
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Bart
Member
Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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laptop batteries are renown for being shite.
And most people ruin them theirselves by not using the battery properly.
e.g, leaving it plugged in perminantly, even when its full, does not do it any good.
The idea is charge it up full, pull the lead out, and let the battery drain, and then charge it up again, the same as mobile phones.
Charging it up half way through is not ideal.
I know some people will not agree with that, but hey.
Source
I have bought a couple of laptop batteries from EBatts.
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Adam
Member
Registered: 1st May 01
Location: Hurstbourne Tarrant
User status: Offline
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The latest IBM's come with battery management to extend the lifespan 
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Carr
Member
Registered: 1st Oct 04
Location: Leicestershire (Home) Ambleside, Lakes (Uni)
User status: Offline
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I always have mine plugged in when I have the chance and I know it probably ruins the battery but when you are gaming on it you don't know when the battery will run out as it will probably be quite soon.
Also it's not good to let it run right down and then recharge it either.
On another note I always leave my phone uncharged until it gets down to 1 or 2 bars (has about 7) as my lst on eogt ruined and the same has happened to my ipod
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Adam
Member
Registered: 1st May 01
Location: Hurstbourne Tarrant
User status: Offline
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quote:
Originally posted by Carr
Also it's not good to let it run right down and then recharge it either.
Yes it is
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Carr
Member
Registered: 1st Oct 04
Location: Leicestershire (Home) Ambleside, Lakes (Uni)
User status: Offline
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not if it's runing down and swithing itself off
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Bart
Member
Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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I have to agree with Adam.
If you can its actually best to let it switch itself off, then recharge it completely.
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Bart
Member
Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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quote:
If your battery doesn't seem to last as long as it did in the past, your battery may be suffering from a battery phenomenon called "memory effect". Basically, this means that if a battery is repeatedly only partially discharged before recharging, the battery will create a "memory" of the level to which it was discharged and "forget" that it can further discharge. With NiCd and NiMH batteries, the best way to prevent this situation is to fully charge and discharge your battery on a regular basis.
Also:
quote:
There are several things that you can do to ensure the maximum performance from your battery: Never leave your battery in its charger for more than 24 hours. Doing so will shorten the life of your battery. Break in your new batteries. The best way to do this is by fully charging and discharging your new battery several times in order to reach its maximum capacity. Keep the contacts of your batteries clean. You can clean dirty batteries with a cotton swab and alcohol. A clean contact will ensure a good connection between your battery and its device. Do not leave your battery dormant. Generally, a battery should be used every two to three weeks to ensure that it maintains a proper charge.
Source
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sukhwant
Member
Registered: 8th Sep 04
Location: Leeds
User status: Offline
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cant wait for them engine powered laptops on out! there ment to last for hours and hours...
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sukhwant
Member
Registered: 8th Sep 04
Location: Leeds
User status: Offline
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if you think i'm takin shit, click here...
http://www.newscientist.com/article.ns?id=dn6559
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Carr
Member
Registered: 1st Oct 04
Location: Leicestershire (Home) Ambleside, Lakes (Uni)
User status: Offline
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I never leave mine on charge overnight.
I want to get an in car charger anyone know where you can get them from?
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sukhwant
Member
Registered: 8th Sep 04
Location: Leeds
User status: Offline
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get a car power invertor
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Nismo
Member
Registered: 12th Sep 02
User status: Offline
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quote:
Originally posted by Bart
e.g, leaving it plugged in perminantly, even when its full, does not do it any good.
ah crap, allwasy left mine plugged in 
how m,uch me gonna be looking at?
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Bart
Member
Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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look for the link ^ for ebats, but i think your talking around £60 off the top of my head.
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Tim
Site Administrator
Registered: 21st Apr 00
User status: Offline
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Li Ion batteries do not suffer from the 'memory effects' above. Shouldn't matter when you charge them (half flat, etc).
Some batteries require recalibrating, however, as the charging circuitry loses track of the state of the battery -- look on the laptop manufacturers website for such a tool...
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Carr
Member
Registered: 1st Oct 04
Location: Leicestershire (Home) Ambleside, Lakes (Uni)
User status: Offline
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Mines got a Li Ion I believe. It's only a month old
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DAYZEE
Member
Registered: 13th Nov 00
Location: Stevenage, MR2 Turbo, 328i Coupe, CBR600F
User status: Offline
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quote:
Originally posted by Tim
Li Ion batteries do not suffer from the 'memory effects' above. Shouldn't matter when you charge them (half flat, etc).
Exactly right, just like the battery in a modern mobile phone. Besides, laptops clock down the speed of the processor when off the mains, anyone who runs a laptop on battery power when there is a plug right there needs help.
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Antz
Member
Registered: 28th Jul 03
Location: Leeds Drives: Myself Insane!
User status: Offline
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Picking my second new laptop in a month up tomorrow 
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Justus3
Member
Registered: 16th Jan 04
Location: Milton Keynes
User status: Offline
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Nismo.
What make/model is yr laptop?
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BlueCorsa
Member
Registered: 14th Jan 04
Location: Midlands Drives: MB SLK250 CDI
User status: Offline
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Leaving it plugged into the mains all the time fucks up the battery. If you're gonna have it plugged in all the time, then take the battery out first before you plug the machine into the mains.
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