How many mAh's of power does the iPhone 4 hold?

Discussion in 'iPhone' started by Goldinboy17, Apr 25, 2011.

  1. macrumors 65816

    Goldinboy17

    Joined:
    Jun 21, 2010
    Location:
    San Francisco, Ca
    #1
    I'm looking for a portable charger for my phone and iPad. I found the Duracell Powerhouse, it holds 2000mAH's and I wanted to know how many the iPhone/iPad hold so I can have an idea of how much it'll charge my iDevices and how many portable chargers I would need. Thanks in advance for any help.
     
  2. macrumors 601

    Joined:
    Jan 16, 2008
    Location:
    Bristol, UK
    #2
    The iPhone 4's battery is 1420mAh, but there isn't going to be a direct link between that and the power that your portable charger can provide.
     
  3. macrumors 6502

    Joined:
    Feb 5, 2011
    Location:
    Indiana
    #3
    Depending on how heavy you use your iPhone it could be less then the 1420mAh. Mine for example will only hold 1240mAh, it has 270 cycles on it.
     
  4. macrumors newbie

    Joined:
    Jan 29, 2014
    #4
    How did you figure out how much mAh your iphone holds and how many cycles you it has no it? Im doing a experiment and if you used an app please tell me, thanks
     
  5. macrumors 601

    PNutts

    Joined:
    Jul 24, 2008
    Location:
    Pacific Northwest, US
    #5
    Yes, from Apple:

    Charge Cycles
    A properly maintained iPhone battery is designed to retain up to 80% of its original capacity at 500 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs.
     
  6. macrumors 604

    cynics

    Joined:
    Jan 8, 2012
    #6
    Keep in mind there are a lot of losses in the transfer of power. For example a 2000 mAh battery can't completely charge another 2000 mAh battery.

    It's even worse since when you are charging the phone is still using power. But by and large they are a good help.

    I have a 2000 mAh Sony battery and it can't charge my iPhone 4S up once. But it's nice in a pinch to get a little battery boost. I also have a 10,000 mAh battery from Satechi, it can charge my iPhone up several times.
     
  7. macrumors 6502a

    Joined:
    Oct 15, 2012
    #7
    To giant the phone is fully charged I would buy something in the region of 2500mah and up.
     

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