Australian PC User contributing editor
Q&A – What’s the iPad’s power consumption?
A. This is going to vary greatly depending on what the iPad is actually doing, what applications your running.
That said, the iPad has a 25-watt-hour Lithium-polymer battery built into it and Apple claims it will last up to 10 hours “of surfing the web on Wi-Fi, watching video, or listening to music” and nine hours “of surfing the web using 3G data network”.
Using a bit of simple mathematics, divide the watt-hour capacity of the battery by the run time claimed in hours and you get the power consumption in watts.
So:
25-watt-hours / 10 hours = 2.5 watts
That basically means that the power consumption of the iPad can be as little as 2.5-watts but the problem is that the time is quoted as “up to”, which is about as vague as you can get. The more you ask of the iPad, the more the power consumption will go up and the lower the battery run time will be.
So, if you get five hours out of the battery, the power consumption is going to be roughly five watts. If you can get it to last six hours, the power consumption will drop to a bit over four-watts. The 25-watt-hour (25Wh) battery is the limiting factor – the more time you can drag out of it, the lower the power consumption becomes.
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| Print article | This entry was posted by Darren Yates on April 19, 2010 at 10:28 pm, and is filed under Apple, Q&A. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site. |
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I personally think the iPad is a waste of money. It’s just another one of Apple’s gimmicks.
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