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Xiaomi Mi 50W 20000mAh Power Bank $59.49 ($58.09 with eBay Plus) Delivered @ Xiaomi Global Direct eBay

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Xiaomi Mi 50W 20000mAh Power Bank $59.49 ($58.09 with eBay Plus) Delivered @ Xiaomi Global Direct eBay
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Clear on 03/07/2023 - 21:54 ebay.com.au (3501 clicks)
JULYY15JULYY17

This previously popular Xiaomi power bank is back on sale for eBay and eBay Plus members. It has two USB-A ports with Qualcomm Quick Charge 3.0 and 1 USB-C port with 45W input and 50W output with Power Delivery 3.0 fast charging and PPS support. So it's perfect for fast charging your phone, tablet, laptop, Nintendo Switch and more.

For reviews this one describes the power bank in detail, as well as the various fast charging protocols it supports.

Features

  • 74 Wh high power
    20000 mAh suitable for air travel

  • Type-C 50W MAX
    Charges the Mi 11 to 100% in 44 minutes

  • Can charge three devices simultaneously
    Compatible with smartphones, tablets and the Nintendo Switch

  • Charges laptops
    Supports type-C laptop charging

  • Type-C two-way fast charging
    Fully charged in 4.5 hours

  • Supports low-current charging
    Able to charge devices such as Bluetooth earbuds and smart bands

  • Improved safety with high-quality IC chips
    High-precision capacitance and inductance sensors, plus advanced circuit chips mean added safety, an upgraded conversion rate and discharging voltage stability. Peace of mind for your everyday charging with multiple circuit protections.

Full Specs

Original Coupon Deal

Electrical & Electronics 20000mAh Power Bank Xiaomi

Related Stores

eBay Australia
eBay Australia
Marketplace
xiaomi_global_direct
xiaomi_global_direct

closed Comments

  • rekke on 03/07/2023 - 22:14
    +4

    Good deal, wish it was 65W for the Surface Pro.

    • capslock janitor on 03/07/2023 - 22:35

      Is 65w best versatility?

      • rekke on 03/07/2023 - 22:47
        +1

        Besides the Surface Pro I found some other laptops, the min was around 65W to get it charging through USB-C (not counting other requirements like PD etc)

        Although I am not aware if there are any downsides if you go higher like 100-120W, which would mean those are the most versatile if you ever need that power.

        • capslock janitor on 03/07/2023 - 23:34

          I'm new to this laptop charging and PD stuff dunno what's the differnece
          Still learnin

    • Budju on 04/07/2023 - 02:47
      +6

      65W currently $57 with code from Baseus. It has been cheaper, I got at $53. Nice battery pack.

      https://www.ebay.com.au/itm/314469276529

      I got this to charge my surface pro 5.

      • DarkNexy on 04/07/2023 - 18:50
        +1

        considering this too… over the xiaomi powerbank.

        both seem pretty solid from reviews

      • y2k on 05/07/2023 - 20:42

        Is that percentage remaining display always on? If so, i Wonder if that would drain battery especially if long time between uses

        • Budju on 05/07/2023 - 20:47
          +2

          It is on during charging, yes. But I think you'll find it uses next to no charge. It is fairly dim, and the battery capacity is massive. Also it is a highly helpful display, because it can also be toggled to indicate the speed of charge and voltage being administered to the device, and vice versa. I love the display. Knowing exactly how many % you have left at the press of a button is just great.

  • y2k on 03/07/2023 - 22:14
    +1

    Can a 50W max output charger like this still charge a 65W device like a Surface Pro 8? eg does it charge, but just slower? Far too slowly? Or does it not charge it at all?

    • SnoozeAndLose on 03/07/2023 - 22:16
      +4

      I know for Lenovo the standard charger is 65w but 45W can also charge it slowly not sure about Surface Pro

      • BlueMM on 04/07/2023 - 11:38
        +1

        I think for Lenovo (after researching 6 months ago), forums indicate it needs to be 20V to charge. So the watts aren't that important, other than being faster.

    • Mungulz on 03/07/2023 - 22:31
      +8

      Generally speaking yes. Works fine for my Lenovo which normally uses a 65W. Warns me of a low output charger being connected.

      I even sometimes at my desk use a 35W charger that came with an old phone. That maintains the charge at 100% unless I'm doing heavy workloads or gaming, at which point it will decline slowly.

      • y2k on 03/07/2023 - 22:35
        +3

        Thanks, very useful to hear a real life experience

    • rekke on 03/07/2023 - 22:47

      Wonder if this has any negative effects on the longevity of either the power bank or the laptop.

      • greatlamp on 04/07/2023 - 17:20

        Charging more slowly would be a good thing for the laptop. Using the portable battery constantly would degrade it over time particularly at max capacity as there is more heat generated, but that's what it's for.

    • cyssero on 03/07/2023 - 23:30
      +4

      I've used this with a Surface Pro 8 and a 7+ to charge without issue. It will be slower than AC but still very helpful.

    • Budju on 04/07/2023 - 03:44
      -1

      Refer my above comment.

  • carlosthedwarf on 03/07/2023 - 22:19

    Thanks OP, was about to buy something on Amazon for a similar price but had much lower output.

  • capslock janitor on 03/07/2023 - 22:35
    -1

    IT'S JULYYYYYYY

    • tharlow on 04/07/2023 - 09:03
      +1

      The middle of winter excites you?

      • capslock janitor on 05/07/2023 - 10:45
        +1

        ebay seem more excited than me

        CHRISTMAS IN JULYYY

  • Yankyviking on 03/07/2023 - 22:52
    +3

    This or this? After discount its $85 for me.

    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/iigYHEm

    • [Deactivated] on 03/07/2023 - 23:24

      The imuto. It can be fully recharged in one hour

    • croseks on 04/07/2023 - 03:53

      The imuto looks heaps better, I think I have to buy one now.

  • Mazozb on 04/07/2023 - 06:39
    +5

    https://www.ebay.com.au/itm/313709345779

    Isn't this better? 100W and with JULY promo for eBay plus, it's 78

    • alxjpow on 04/07/2023 - 11:52

      Might be worth $20 more for some people. I'll get something else because that doesn't work properly at 100w

      • Prong on 04/07/2023 - 15:09
        +2

        That YouTube review is of the new HD model, which is about 25% smaller in volume than the model linked on eBay.

        The original larger one may still have a similar issue, but perhaps not if it the extra space gives better thermals. I have one, but have not run it at a sustained 100W output. I have a load tester though, and I am curious, so will give it a try.

        Keep in mind that other power banks may also have the same issue under sustained max load. Not many reviewers test that.

        • alxjpow on 04/07/2023 - 17:25
          +2

          Ah, my bad. Here's the older model review.
          Thin li-po packs would be convenient for laptops.

          Different purpose, I need sustained 100w output with heavy duty cycles for my Bluetti, so the premium for a ZMI no.20 has been worth it.

    • allewell on 04/07/2023 - 19:54

      This is slowly getting jacked now. It's up to 95.99 (81.59 after JULYY15)

    • angryasian on 16/07/2023 - 08:46

      Clicked on this deal and left with Baesus. Let’s see

  • haz on 04/07/2023 - 08:30
    +1

    will be good if it has a digital display as well.

  • Sidor on 04/07/2023 - 08:48
    +3

    How long these Xiaomi power bank last? Bought two Xiaomi from Kogan couple of years ago, one is a brick now, batteries expended like a balloon.

    • tharlow on 04/07/2023 - 09:01

      The legendary spicy pillow!

    • Arty.R on 04/07/2023 - 09:34
      +1

      I have one thats a couple of years old now which I use every time I travel. It's still great. Your mileage may always vary with lithium batteries

      • ozhunter68 on 05/07/2023 - 17:22
        +1

        I have bought more than 10 various types of Xiaomi power banks over the last 8 years or so,

        and none have stopped working or swollen up. I don't use them often though, and look after them.

  • pokgai on 04/07/2023 - 09:17
    +1

    Can someone explain how mAh works.

    On the website it states
    3.8charges - iPhone 12 (~2800mAh)
    1.9charges - Mi 11 (~4600mAh)
    2.3charges - Nintendo Switch (~4300mAh)

    If this battery is 20,000 mAh, me not knowing physics I would straight divide 20,000 by the battery size of the devices?

    Hence iPhone 12
    20,000/2800 = 7.14, approximately 7 times you could charge it.
    How come its 3.8 charges on the website?

    • Clear on 04/07/2023 - 09:21
      +2

      The power bank cells are typically rated at 3.7V while USB is 5V. The basic formula is as follows:

      3.7V x 20000mAh / 5V = 14800mAh

      To further complicate it this number can change if the voltage is higher due to PD charging and there's also the power bank efficiency which will result in some loss.

      • pokgai on 04/07/2023 - 09:27

        Ah, yep I assumed there would be losses or something but the voltage difference makes a ton of sense.

        Cheers!

        • Prong on 04/07/2023 - 14:50

          The iPhone 12 2800 mAh capacity is at 3.7V, the same as the battery banks 20,000 mAh. So you are correct with your 7.14 times math.

          But the battery bank steps the voltage up to 5V (or higher - 9V for the iPhone 12), then the iPhone steps the voltage back down to the ideal charge voltage.

          This process is not 100% efficient, so a significant portion of the power is lost as heat. The cables, connectors etc all also have some resistance, and turn a bit of the power into heat.

          Then actually charging a battery takes more power than the rated capacity, as some is lost in the process.

          The result is you get fewer charges than expected. In my experience, many power bank manufacturers tend to give the worst case scenario, so in actual use you get better overall efficiency and more charges.

        • montorola on 04/07/2023 - 16:27

          lol @ your username

  • ChatCPT on 04/07/2023 - 09:56
    +1

    is there anything that can charge an iphone, apple watch and macbook air at the same time? on a plane

    preferrably usb c x 3

    • Clear on 04/07/2023 - 09:58
      +1

      This one will be 2x USB-C and USB-A.

      Type C 1 + Type C2 Output: 65W + 30W
      Type C 1 + Type C2 + USB Output: 45W + 30W + 18W

      • ChatCPT on 04/07/2023 - 10:04

        what a beast. ordered
        thank you Clear. helpful as always!

  • G-rig on 04/07/2023 - 12:32

    The Romoss ones from Amazon are good.
    PD, USB C two way:)

  • Micsmit on 05/07/2023 - 03:08

    This power bank is excellent I have have bought 3 over the last 5 years. All still work great

    • Mungulz on 05/07/2023 - 09:12

      I’m also collecting them. Had 4, down to 3 now.
      One was about 3 or 4 years old I’d say, and i’m not sure if thats the one that failed or if it was one of the newer ones. Held a charge but stopped charging devices after a few seconds.

      • ozbd on 05/07/2023 - 19:39

        Hmm I just got mine and I charged it up fully. Plugged into phone via USB C cable. Says is charging then disconnects after about 30 seconds :(

        • BadPanda on 21/07/2023 - 08:14

          Ive got two and the both stop charging low power devices after about 12 seconds. Can not get them to go into low power mode.

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