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charging laptop over night ? maybe one for cycovison ? |
ofiaich
Joined: Nov 12, 2001
Posts: > 500
From: East Yorkshire, England
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Hi!
I am wondering about the up to date views on charging a Sony VAIO overnight.
Battery had dropped to 23% because it hadn't been used for a good while, but I need it tomorrow for quite a few hours... ( battery life on my VAIO is abput 7 hours. )
I have read that it is better not to charge for long periods.. and it is good to charge a little and no harm to switch off..
Off to do more searching...
guess this here sums it up...
this seems to say the same
I guess this source is best...
Simple Guidelines
* Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
* Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
* Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
* Consider removing the battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
* Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.
* If you have a spare lithium-ion battery, use one to the fullest and keep the other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.
any comments welcomed...
ofiaich 
[ This Message was edited by: ofiaich on 2008-08-13 23:32 ] |
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brownie1989
Joined: Feb 23, 2005
Posts: 204
From: Near Stoke City FC!!!! WOOOOOO
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Not a sony laptop but with my dads HP laptop. High end graphics card. The battery is pretty useless and can only really run the coimputer for 5 hours or so. Your best bet is to fill the battery then unplug the computer and leave it with the battery full. Also turn off any wireless functions or bluetooth when not in use and dim the display just to boost battery time. run it on mains when ever possible because the batterys are never much good.
[ This Message was edited by: brownie1989 on 2008-08-14 09:18 ]
[ This Message was edited by: brownie1989 on 2008-08-14 09:20 ] |
arien617
Joined: Feb 01, 2006
Posts: > 500
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Don't complain about 5 hours man....
even after a full disc cleanup and a defrag my HP only gets about 45 mins to an hour from its battery.
I do have many applications running at once but still, I should get more!
Not fussed though, it's a desktop replacement. But still...
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ofiaich
Joined: Nov 12, 2001
Posts: > 500
From: East Yorkshire, England
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Hi everyone!
I usually get 7 hours plus... of course, depends what I am doing,,,,,
Ofiaich
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Evil Eye
Joined: Jun 23, 2004
Posts: > 500
From: Pune, Maharashtra, India
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OMG! 7 hours and 5hours battery backup 
@ofaich and @brown which laptop models u guys using?
With my Acer 5920G having the 8600M GT graphics card i get 90-105mins of battery life on a full charge, its a year old though. Used to get 135-150mins when it was new.
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ofiaich
Joined: Nov 12, 2001
Posts: > 500
From: East Yorkshire, England
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Hi Evil Eye,
I am using a Sony VAIO VGN TX51B. It is a Japanese model with Japanese Windows XP. I bought it second hand in Japan because the man who owned it wanted the newest model with finger print reader. Fortunately, he was not Yakuza.
The model was probably released as a TX-2 in England.
I like the way you can use media without launching Windows.
I bought a long life battery, which Sony claimed would run for 11 plus hours ! In reality, just over 7, is what I get. The battery is a Sony VGP-BPL5A
Technology: Li-ion
Rating: 7.4 V
Capacity: 13000 mAh
Ofiaich 
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
PM, WWW
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batts never deliver the time they are claimed to have 
For Laptops:
Lithium batteries - don't let discharge fully, no need to worry about memory affect so charge whenever you need to. Don't leave on charge (to avoid heating the battery), though depending on the charger some will stop charging when the battery is full emaning you can leave on charge without reducing battery lifecycle.
Nimh batteries - don't leave on charger unless being used - this will reduce the battery life cycle unnecessarily. To help avoid memory affect charge from empty at least once a week. These batteries can be fully discahrged without harm (unlike lithium)
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Posted: 2008-08-14 00:12
