what does whr stand for?

Discussion in 'Laptops, Tablets and Smartphones' started by kitmk, Apr 30, 2006.

  1. kitmk

    kitmk New Member

    Messages:
    137
    when it says battery pak and life: 71WHr, what does that mean in english?
     
  2. Bobo

    Bobo banned

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    6,586
    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.
     
  3. kitmk

    kitmk New Member

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    137
    so how many watts will a laptop generally use?
     
  4. kitmk

    kitmk New Member

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    137
    or should i be more specific?
     
  5. Bobo

    Bobo banned

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    6,586
    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...
     
  6. Hairy_Lee

    Hairy_Lee VIP Member

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    2,549
    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
     
  7. Bobo

    Bobo banned

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    6,586
    No, I'm just plain confused....I was thinking of 20V DC.

    Ignore what I was saying...:(
     

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