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The big fat lie about battery life

Forum Laptops & Notebooks : General Laptops & Notebooks - The big fat lie about battery life

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randomizer   02-11-2009 at 01:16:16 AM

http://www.smh.com.au/news/digital [...] e=fullpage

Best. Article. Ever.

Quote :

A very high-end model may come with a lithium-ion (Li-ion) or lithium-ion polymer (Lipo) battery while your average model will ship with a lowly NiCad.



Someone tell me the last time they saw Ni-Cad in a laptop? Or anywhere for that matter :lol:

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Bronze Laptops badge lostandwandering   02-11-2009 at 01:49:54 AM
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Maybe in the old (think '95 or 96) IBM ThinkPad I have at home. Just about every laptop I see today has a Li-ion battery, or is at least advertised with one.

Quote :

Ask anyone who owns a laptop and they will say the same thing: battery life sucks. Nearly everyone reports it is less than they thought it would be.



Can't say that my brother, dad or I have experienced this. We get just about what ours were rated for.

------------------------------ LAPTOP: Sager NP5760|T7200|2gb DDR2-667| 100gb 7200rpm HDD| 512mb 7950GTX|17'' WUXGA

Desktop: Core2 E7200 | Corsair 2gb DDR2-800 | Gigabyte EP35-DS3L | 250gb Seagate Barracuda | MSI GTX260 (192 SP) | Corsair VX550 | Antec 300 case
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randomizer   02-11-2009 at 02:35:19 AM
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"Nearly everyone" is probably watching DVDs and expecting it to reach the battery life stated on the packaging.

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Bronze Laptops badge lostandwandering   02-11-2009 at 02:45:45 AM
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^haha that is probably not far from the truth.

He also made a point about limited life spans on the Ni batteries. This is also true for Li batteries. My brother just had to replace the 9-cell Li on his Dell. Granted it lasted close to three years.....

------------------------------ LAPTOP: Sager NP5760|T7200|2gb DDR2-667| 100gb 7200rpm HDD| 512mb 7950GTX|17'' WUXGA

Desktop: Core2 E7200 | Corsair 2gb DDR2-800 | Gigabyte EP35-DS3L | 250gb Seagate Barracuda | MSI GTX260 (192 SP) | Corsair VX550 | Antec 300 case
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randomizer   02-11-2009 at 02:48:57 AM
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Li-Ion (and Li-Po to a lesser extent) slowly loses capacity from time of manufacture onwards whether it is used or not. Conditions it is stored and used in slow or speed up this process.

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cheaptofix   02-12-2009 at 04:46:02 PM
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dumb. when you buy a new laptop battery lasts very long up to 3 hours. 1 year later battery begins to lose its memory charge. time kills batteries nothing else

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randomizer   02-13-2009 at 05:25:33 AM
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That's not entirely correct. Li-Ion begins to lose maximum capacity from the moment it is manufactured. There are slow chemical reactions inside the battery that cause this. Also, having the battery in high temperatures accelerates this reaction there therefore speeds up battery aging. The reverse is also true, so that storing in a fridge will slow the aging process. Alternatively, try your favourite anti-aging cream.

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