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Other Something bothering me...

Discussion in 'Tech Support' started by ModSquid, 12 Nov 2018.

  1. ModSquid

    ModSquid Minimodder

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    Poser for ten:

    Can anyone explain to me why the packaging for a 10,000mAh power bank says it can charge an iPad mini (4400mAh) 1.5 times, or an iPhone (1470mAh) 4 times?

    Would that not indicate a capacity of either 6600mAh or 5880mAh? Why aren't these estimates twice and 6.5 times?
     
  2. Big Elf

    Big Elf Oh no! Not another f----ing elf!

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  3. Gareth Halfacree

    Gareth Halfacree WIIGII! Staff Administrator Super Moderator Moderator

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    Yeah: they're converting the battery power into live electrical power into battery power again, with losses at both ends. If you want 100% efficiency, you need a phone with a replaceable battery you can swap out when it's empty. Absolutely anything else will come with losses.
     
    Arboreal and Sentinel-R1 like this.
  4. Sentinel-R1

    Sentinel-R1 Chaircrew

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  5. ModSquid

    ModSquid Minimodder

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    Aha! Things are clearer - thanks indeed all.

    I have to say though, that TP-L article wasn't especially well written. Took three days of banging my head off it to finally get the message. Maybe I'm just thick.
     

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