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Audiosonic USB Portable Chargers: 11200mAh $39 + 2500mAh $15 @ Kmart

50

Compatible with most smartphones and tablet devices and includes a micro USB cable - 12 month warranty

2500mAh $15 + 11200mAh Dual Output (1A+2A) $39

also USB Lightning cable 1m $8 - 12 month warranty

Related Stores

Kmart
Kmart

closed Comments

  • +2

    Anyone know the output of this bank? amps?

    • -7

      V / R = I
      11200mAh = 11200mA per hour
      So the answer is, it depends on its purpose, to what your output current will be.
      But is capable of flowing 11.2 amps per hour

      • Yeah no that's not how this is going to work. It'll be rated for a maximum amperage at a given max voltage based on the internal components, which is what he was asking - not the theoretical maximum.

        • -5

          Yeah no that is how ohms law works buddy.
          What i said is how it works. V/R = I

          11200mAh is the theoretical max
          But without V or R you cant answer the question of its output in amps.
          To answer it @5v or @12v will just give you theoretical answers with out the devices resistance.

          It'll be rated for a maximum amperage at a given max voltage based on the internal components, which is what he is asking

          Rated at 11200mAh…
          The question is not what is the max rated voltage for that max mA, thats device (R) and voltage (V) dependant.
          The question is

          Anyone know the output of this bank? amps?

          Answer= V/R

        • Wow…can everybody say it with me?

          WHOOOSH

      • +1

        Km/h is kilometers divided by hours or in other words Kilometers per hour if you are travelling at 100km/h you go further the longer you travel. On the other hand, mAh is milliamps multiplied by hours; the longer you need the battery to last the less amps you can deliver. So the the battery has enough capacity to deliver an amp continuously for 11.2 hours, or 11.2 amps for one hour, or run the starter motor in a car for a minute or so. However, even though the battery has the capacity (11200mAh or 11.2Ah) to jump start a car, the internal resistance of the battery will always limit the amount of amps you can draw from the battery no matter how short the duration is. So the battery also has a maximum current measured in amps. This is probably about 2A, not nearly the 1000A or so you'd use to start a car.

        Note that since amps measures a continuous flow, the unit mA/h or mA per hour is rarely used. Hope this makes it clearer.

        • -1

          11.2Ah = 1.8A
          If thats how you want to look at the question, you are closely correct. For that i gave you a +1
          But reading that question again its still dependant on V & R as mentioned.

        • Huh? If 11.2Ah = 1.8A then h=1.8A/11.2A=0.16 but an hour is not equal to 0.16. That doesn't even make sense: 0.16 what, 0.16 seconds?

          While it is true that I=V/R, batteries don't specify the resistance (R) quoting ohms law doesn't really help us. In fact for safety reasons it could be designed to increase the resistance if a dangerous current is drawn, so there may not even be a fixed R value for us to plug into ohms law. Since it is probably 2A and 5V we could calculate that R is 2.5 ohms at peak current, but how does that help us?

        • -2

          Not worth the time…
          Hope you purchased one shadow131
          Good deal OP

    • 7,000-10,000mAh chargers are usually rated for 2A/2.1A maximum output. I imagine this one is as well.

      For example, doing a quick search on Ebay:
      10000mah 3A: 1 hit
      10000mah 2A: 65 hits
      10000mah 1A: 29 hits but all of these are from 2.1A or 2A+1A chargers.

      So 2A is clearly the standard rating for the primary output of a 10,000mAh charger.

    • Similar ones have dual ports 2A/1A "11200mAh Portable 5V 2A/1A Dual USB Ports"

      To answer part of the reply to your question, the purpose would be providing 5V to USB devices, dur

    • Anyone know the output of this bank? amps?

      1A+2A - deal updated :)

  • Any extra details?

  • +4

    Personally, I think I would trust an equivalent Romoss or Xiaomi unit over this one. Would work out cheaper too.

    • got a link to one you can recommend, I need one soonish

    • +1

      Yeah, but if this one fails then I can take it back to Kmart. Not so easy with a Romoss from shopxyzann in China…

      • I reckon this is worth getting too with Kmart. Being that you are safe from getting something dodgy and scammed out of your money like with those overseas online retailers. If you test it and not up to scratch then you can ask for a refund which they simply cannot refuse.

  • Reputed brands - checkout Anker Astro 3 genuine 12,000mah on eBay for
    USD 54.99 delivered.

  • I just ordered an Intocircuit Power Castle 11,200mAh from eBay for just over $50. This was after reading some reviews. I was almost going to buy a cheap one, but then found bad reviews so researched a bit.

  • I've heard that portable chargers can damage your phones battery if the current output is not proportional or something like that, does anyone know whether this would be safe working with an iPhone 6?

  • Also a 5000 mAH for $25 (available at some stores including Hornsby -checked)

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