Hey guys and girls,
I was wondering if My battery is charge max... should i take it out and use adapter until I plan to bring it out with me to travel and such?
Or just leave it in period?
Leave any comment, love to chat until my boxing goes into shipping stage
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I think I read somewhere that the best way to preserve a battery is to leave it at around 40% charge in a refrigerator.
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I did that until I got my docking station. Then i couldn't reach the battery and it became too much of a hassle.
A few points:
* Your laptop is smart enough not to try to overcharge past 100%.
* When on AC, your laptop is running full-speed, and is going to be hotter.
* This ambient temperature exposure affects your battery's life way more than having it fully charged.
* Ideally, li-ion batteries should be stored at about 40-60% charge. Don't ever store it when it's drained.
* In fact, if you're running low and the notebook auto-sleeps, don't try to squeeze more juice out of it. Li-ions do not respond well to *complete* drains.
*Without a battery as backup, someone tripping over your AC will of course do its thing.
IMO, whether or not you run sans battery really depends on how you use the notebook, and how sick you get of constantly turning it off, carrying an AC, not being able to use sleep, etc. etc. -
There are a lot of wives tales about batteries. Some of them were true ages ago, some of them were just observer error. As far as I know, most laptops stop charging the battery once it reaches full charge. As long as it's plugged in, the laptop won't use the battery so it doesn't matter if it's plugged in or not.
Some people will say it matters, others will say it doesn't. IMO I don't think it matters. I am sure some people will completely disagree though. -
I'm not talking about overcharging or charge/discharge cycles. I'm talking about if you don't use the battery at all, it will still lose maximum charge over time.
From wikipedia:
"A unique drawback of the Li-ion battery is that its life span is dependent upon aging from time of manufacturing (shelf life) regardless of whether it was charged, and not just on the number of charge/discharge cycles. So an older battery will not last as long as a new battery due solely to its age, unlike other batteries. This drawback is not widely publicised.[6]"
"Guidelines for prolonging Li-ion battery life
* Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a longer time, they should be brought to a charge level of around 40%. Lithium-ion batteries should never be "deep-cycled" like Ni-Cd batteries.[7]
* Lithium-ion batteries should never be depleted to below their minimum voltage, 2.4v to 3.0v.
* Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly."
So yeah, 40% in a refrigerator.
battery in or out?
Discussion in 'Dell' started by clovet, Jul 19, 2007.