Powerbank That Can Output USB-C PD 3.0 65W Whilst Able to Charge on Another Port

virtual81 on 27/07/2023 - 01:05

This is an easy one… until you get to the whilst charging on another port kinda part.

Plenty will charge all your stuff whilst being charged….. on the bloody 65W port.
I need the 65W port available to power a laptop, and still have the bank be able to charge from any other port from a 5V USB source.

Prefer something within the 100watt limit for possible carriage on aircraft, but open to larger.

Need at least one Type C PD output capable of 5, 9, 12, 15 and 20v output, 65W (20v 3.25A capable).

Need at least one MicorB or Type C input independant of the Type C output.

Need at least one Type A out.

Trying to keep spend under AUD$100

Find Me A Bargain Power Bank

Comments

  • freefall101 on 27/07/2023 - 04:10
    +1

    https://www.ebay.com.au/itm/404138965448

    I have one of these, ticks all the boxes.

    Edit: sorry, baseus site says it can’t output more than is being input

  • CodeXD on 27/07/2023 - 11:04

    Is there a point in trying to charge a powerbank at say 10W whilst it is being used at 65W?

    The numbers don't match up and you'll barely be able to make a dent (if ever) in the overall duration of sustaining the 65W.

    This is not one of those 'any power is better than no power' as the powerbank needs to manage both input and output at the same time with different W.

    • virtual81 on 10/08/2023 - 15:44

      I don't see why not.

      My use case is on a regional train that only provides an 18W Type A charge port.
      Whilst charging from 0 the actual measured charge power of my Thinkpad is ~43 watts and once full it only consumes ~ 8-12 watts.
      So with 18W in and 10W out i should be able to step off the train with powerbank and laptop battery full.

  • avoidfullprice on 27/07/2023 - 13:35

    What about this

    imuto 100W Laptop Power Bank, 20000mAh USB C Portable Charger,External Battery Fast Charging Compatible with Laptop,MacBook,Surface,iPad,Steam Deck,Switch, iPhone 14/13,Galaxy, Pixel,Camera https://amzn.asia/d/egGnkTd

    It is just first result on Amazon when i search “ usb c 100w pd power bank”

  • BLAIL on 27/07/2023 - 16:35

    Only thing i can think of is this but its way over budget: https://www.auspowerbanks.com.au/product/usb-c-laptop-power-…

  • askbargain on 27/07/2023 - 21:32

    how are you going to charge and discharge a battery at the same time? change physics?

    you can't passthrough a 65w output from a 5v input. you're better off charging the laptop directly and then charging the powerbank off the laptop

    • virtual81 on 10/08/2023 - 16:03

      I don't know what makes you think it can't be done, there is nothing in physics that says it's impossible.

      There are 2 devices linked above that can do it.

      You don't need to 'pass through' anything… that's just a marketing term.

      Here is explaination…
      You have for example 5v @ 2A (10 watts available).
      That goes through a DC:DC conversion ~ 90% efficent and charges the 3.7v battery in the powerbank.
      Next you have another DC:DC converter that converts 3.7v to 20v for the Type C PD.
      Charge laptop off the 20v
      If your power source is even higher powered (say 9v @ 2A) you could finish with both a full powerbank and full laptop.
      Done.
      It really is that simple.
      Dont be confused that being capable of 65W means it will use 65w.
      You could very well be in a situation where you have a device that requires 20v, but only a few watts.

      Also while some devices are constrained to a certain voltage while being charged, others are not.

      Here is an interesting device that will do it that i just missed out on for almost 50% off.
      https://www.amazon.com.au/gp/product/B09VPHVT2Z/ref=ewc_pr_i…

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