How to Choose a Good Laptop Battery and Get Longest Laptop Battery Life

Oct. 19, 2010 - PRLog -- How to choose a good laptop battery and get the longest laptop battery life available or hold your laptop battery more charging time.

Comparing various laptop batteries, you may wonder how to choose a good laptop with a good battery. And how to find the battery with the longest life available for your computer. That's need a practical way to contrast them side by side. However, there is an important measurement of WHr(watt-hours) that determines the amount of laptop battery charging. The more WHr, the longer the battery will last between recharges. If your battery can produce one watt of power for 12 hours, then its rating is 12 WHr. Amp-Hours is another batteries' charging measurement. The difference between WHr and Amp-Hours is that the watt as a measurement of power and the Amp as a measure of current.

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The laptop battery provides a fixed voltage to your computer, measuring charge in watt-hours or amp-hours are equally valid methods. For instance, if your battery lasts for 20 watt-hours and always provides 10 volts, then it is valid to state your battery's energy storage capacity as 2 amp-hours. Different batteries use different chemicals to store charges. Whether you're talking about the rechargeable or non-rechargeable variety, all batteries work on the same basic principle: They are essentially a canister of chemicals that produce electricity.


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From: http://www.papatek.com/Knowledge/Battery-knowledge/Knowle...

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