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Old 04-30-2006, 12:42 AM   #1
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Default what does whr stand for?

when it says battery pak and life: 71WHr, what does that mean in english?
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Old 04-30-2006, 12:43 AM   #2
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It means Watt Hours. The bigger, the longer the battery will last. Essentialy 71WHr means that if you were using only 1W, the battery will last for 71 hours.
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Old 04-30-2006, 12:49 AM   #3
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so how many watts will a laptop generally use?
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Old 04-30-2006, 12:50 AM   #4
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or should i be more specific?
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Old 04-30-2006, 01:06 AM   #5
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It will say on your charger, but generally around 20W. However, that does not mean that your battery will last 3.5 hours. Battery life is affected by what the processor is doing, and how much electricity the laptop actually needs.

This is how I understand it, but I am not totally sure...
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Old 04-30-2006, 02:37 AM   #6
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ive come across notebooks that draw 6 amps on a 12v supply (while also charging)
in this case thats a total draw of 72 watt, now obviously a lot of this is going to the battery but i think 20 watts is a fairly low value with this in consideration... if you're looking for values for a specifc notebook then you should check the manufacturer's information for that model; they should be able to provide you with the information you need
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Old 04-30-2006, 02:38 AM   #7
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Quote:
Originally Posted by Hairy_Lee
ive come across notebooks that draw 6 amps on a 12v supply (while also charging)
in this case thats a total draw of 72 watt, now obviously a lot of this is going to the battery but i think 20 watts is a fairly low value with this in consideration... if you're looking for values for a specifc notebook then you should check the manufacturer's information for that model; they should be able to provide you with the information you need
No, I'm just plain confused....I was thinking of 20V DC.

Ignore what I was saying...
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