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ROMOSS SW30 Pro 26800mAh Type-C PD Portable Charger (Flight Approved) $41.64 Delivered @ Romoss Amazon AU


Not the best ever price but still a good deal for anyone looking for high capacity battery charger for their portable electronic devices. Has multiple inputs and outputs. Will charge most phones, Nintendo switch, etc. I have a couple of Romoss power banks (not this one, though) and they work great.

Capacity of 26800mAH at 3.7V brings it to just under the 100Wh legal limit for flights (best to confirm with your airline).

Free delivery for all from Amazon as it is just over the $39 threshold.

Price History at C CamelCamelCamel.

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closed Comments

    • +5 votes

      i flew via tokyo, moscow, zurich, london & frankfurt in dec19 with my 26800mah without any issues. The limit is 100WHr, although some airlines will allow up to up 160WHr with prior approval.

    • Qantas and Virgin web sites clearly state the limit is 100Wh. This powerbank uses 3.7V cells (as do most Li-ION units). 26800mAH times 3.7V equals 99.6Wh, which is under the 100Wh limit. This is the reason they designed this unit with a 26800mAH capacity. A 30000mAH unit will take you over the limit. A 20000mAH unit should be fine.

    • 20,000mah is if you calculate it using the nominal voltage of 5V which will make it below 100WH.

      The reason why they say 20k MAH is max is because the item itself says "20,000mah and 5V", therefore if you calculate it purely on what the packaging says (yes its false advertising by the manufacturer), then 20,000mah = 100WH.

      However if you know the construction of the powerbank then the actual batteries inside is 3.7V, which makes a 20,000mah = 74WH.
      Xiaomi ones explicitly print the WH, so i suspect bringing one of those onboard which although says >20000mah, but it explicitly shows the correct WH printed on the device.

      I think it all comes down to luck… and if you get a officer look at you the wrong way… Most will be able to bring it, but there will be fringe cases where they get confiscated. Comes down to if you are willing to risk it or not.

      • Its funny because the technicality is that the batteries nominal voltage is 3.7V, but when they are charged it is actually around 4.1V. so 26800 times 4.1V is actually over the 100Wh limit. But they aren't smart enough to know that :)

  • Remember, this does not charge most laptops. It only does 12v max. No 15v, no 20v. Not worth the purchase imho.

    • Well if you wanted to charge a laptop, you wouldn't buy it. It charges everything else so definitely worth it.

  • I bring my Ravpower 26800mah powerbank on every flight and have never airline tell me it was over the limit.

    • I took that one and a 10000 mAh Xiaomi to and from Koh Samui last week, didn't get any questions. Both just in my backpack I took on board, it didn't get looked at in Melb, Changi or Koh Samui airports

  • Romoss powerbanks are great.

  • Any deals on something similar but eith half the capacity and half the price:)

  • What is flight approved supposed to mean (each airline is different)? who gives this authority?


      It's specific to each airline and country. In Australia you can fly with up to 100Wh without airline approval and 100-160Wh with airline approval.

      Qantas/Jetstar have a form that you fill out to get approval for a year. Virgin simply ask that you declare it at check in.

  • the Romoss range is great had a 20000 30000Mah

  • I guess this won’t work will Dell laptop

    • Won't charge a full-size laptop.
      Might charge a chromebook-type lite laptop.

      Unfortunately it's really hard to find which voltages can be used to charge which laptops.

  • It's worth knowing that the max USB-C PD output is 18W, no higher. Don't expect to charge laptops, for instance. But if 18W is all you need, then it will do the job without fuss.

  • This is very heavy. Twice the weight of Ravpower with same capacity

  • Showing up as $48.99 for me. However, thanks to the comments I learned about the 100WHr limit.