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ROMOSS 60000mAh Power Bank $84.99 (was $99.99) Delivered @ Romoss Amazon AU

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$15.00 coupon is available. Just make sure you apply the coupon before you add it to your cart. The discount will be applied at checkout.

Looks like the coupon became available after highon2str found it but kudos to them for finding one of the biggest powerbanks I've seen!

I don't think you can take these on planes though.

ROMOSS 60000mAh Power Bank, 22.5W Max Portable Charger Phone Battery Charger with 4 Outputs and 3 Inputs Fast Charge External Battery Pack for iPhone, iPad and More (Fast Charging not Suitable for Samsung)

Price History at C CamelCamelCamel.

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closed Comments

  • +27

    That's one T H I C C and chonkyyy powerbank!

    • Was legit my exact thought 😆

    • Keep in mind takes 14~ hours to charge to full if you're lucky on a 9V 2A input

      They could have put a PD 45w in and out chip in there, the cells can handle it

  • +13

    That is genuinely a brick. I could whack someone with that

    • -3

      …ummm why????

      • +1

        Self defence? 😏

      • Pleasure. Kidding.

      • +7

        He'd get charged!

        • +6

          Would the charge be Assault and… Battery?

    • +1

      Little pointless since too heavy for a hike, over capacity for a flight, redundant in the home and car

      • +4

        As mentioned by others, it'd be great for places that have regular power outages, camping with multiple devices, or kept by the sofa if there's no power socket nearby so you can charge your phone quite a few times before having to recharge the power bank again.

    • +1

      Or you could use it as a nade

  • +21

    I half posted this for the comments. Keep em coming! Haha

  • +8

    Can this recharge my Tesla?

    • +35

      This replaces your Tesla battery lol

    • It can be used as 250kW supercharger ;)

    • +5

      Can charge the smallest 50kWh battery 0.444% *if there where no losses.
      At the max 22.5w, it will take 9h52m to charge the above amount.

      In summery, you will need 226 of these to charge your low end Model 3 from 0% to 100% *again, if no losses going from 9V DC to 230V AC then back to 350V DC

      • +1

        ^this guy electrifies

  • +4

    Got one thanks. This is great for long car trips with the kids.

    • +13

      Not wrong. Won't even need a car. Just sit this powerbank on a removalists dolly, have your family climb aboard. Profit.

    • -1

      It's a freaking chunk of C4 my friend, I would not use a relatively big one. Even one lapse of judgment left in the sun/heat of a vehicle, and this big boi will likely self combust and take your car with it (and whoever else inside).

      • Even one lapse of judgment left in the sun/heat of a vehicle, and this big boi will likely self combust and take your car with it (and whoever else inside).

        What's the difference between leaving this power bank in a car, and leaving a phone or GPS or dashcam with battery in a car? What would make this self-combust?
        Is leaving 5 phones in a car more risky than leaving 1 phone in a car?

        • What about parking a Tesla in the sun?

          • +2

            @BuyoTheCat: It would probably melt before you could drive it all the way in.

        • That's a risk too, especially in the full sun or change in direction of the sun inside your vehicle. The difference is the potential destructive forces of the boom, be it a small or large battery pack.

          There's a reason why nobody uses lithium polymer crank batteries for vehicles, it's just too damn risky.

          • @Bamboozle:

            The difference is the potential destructive forces of the boom, be it a small or large battery pack.

            Is it an actual problem with widely documented cases, or is it just a theoretical concern? Can sunlight cause a cell to ignite, or will it just outgas?

            There's a reason why nobody uses lithium polymer crank batteries for vehicles, it's just too damn risky.

            Crank batteries are LiFePO4 which have far greater cycle life than lipo. It'd be economically silly to use lipo even if heat wasn't a concern.

            • @eug: The prices have really come down, and the lifecycles for the $ are there, and the increased runtime for utility power uses etc, but there is no way in hell I'd use one as a crank battery, even though a few companies have offered them in the past. Some still offer them now.

              The risk is of a very intense sudden fireball that quickly overtakes your vehicle. Yes this is a real risk.

              Those kinds of batteries are best used being constantly shaded, under 65c and as secondary/utility batteries, not as engine batteries.

              • @Bamboozle:

                The risk is of a very intense sudden fireball that quickly overtakes your vehicle. Yes this is a real risk.

                Yes, there is also a real risk involved with storing 60L of highly-flammable liquid in a plastic tank 1 meter behind you while driving and parking under the hot sun.

                The question is how risky is it? Power banks can self-ignite just like how cars can self-ignite. But how frequently does this occur, and is there really a big difference in risk or damage between a 20,000mAh power bank and 60,000mAh one?

                  • @Bamboozle: As I said, power banks can self-ignite just like how cars can self-ignite. But how frequently does this occur, and is there really a big difference in risk or damage between a 20,000mAh power bank and 60,000mAh one?

                    Your original comment claims that this power bank is, I quote, likely to self-combust if left in a hot car one single time.

                    My question was, is there really a big difference in risk of self-igntion or damage between this power bank and a smaller one, or even a phone? Plenty of people have left devices like dashcams, GPSes, phones, tablets, and laptops in their hot cars. What makes a bigger battery more likely to self-ignite?

                    • @eug: It's something to consider, that's all I'm saying.

                      I am just not a fan, I've seen what they can do when they fail. My phone I keep on my body all the time, very different from a separate battery pack. They don't even have to be left in the sun, just in a hot environment inside a vehicle and the batteries will expand and start leaking fluid which stinks like chemical death. Not a fan.

    • These never ending lockdowns… This battery is enough for driving around the block a few hundred times

    • +20

      I prefer 60000000µAh

    • +18

      Sure, it's 60.000Ah

    • +1

      Ah! I get it. OTOH, mEh.

  • +29

    good for powering a laptop if it has PD
    Only 18W PD
    Bit of shame. Would be a lot more useful if it could do closer to 60W.
    Wonder if it could adequately power a Raspberry Pi. Probably not with 5V 2.4A.
    With so much power storage you'd think they'd make it a bit more versatile. Who needs such a huge brick just to recharge their phone?

    • +1

      ^^^This^^^

    • +2

      They do a 45W USB C-PD - PPD20, just got one on eBay for $47

      • +4

        But that is only 20000mAh
        If it would be 60000mAh with at least 45W or more you can have a full day power solution for your notebook/phone/etc

        • +1

          Remove the front cover and replace the circuit board. Cells should be find even at 100W discharge. Keep the old one for BMS and charging circuit. Slower charge is not all that bad

      • +1

        Same, bought yesterday and delivered today.

        I’m going to buy another 45W 20000mAh, $49.99 is a good price. Handy to have a couple in case of emergency.

    • +2

      Indeed. If it could charge a laptop you could forgive it for simulating the looks of an Irish tank.

    • I’m using the 30k version to power a pi4 and 4x USB camera. One USB out to the Pi. The other to a powered USB hub for the cameras. I then use a POE brick to charge the battery unit. Keeps it going for ages and mange’s to hold on the juice the Pi and the camera needs.

  • +1

    I question if this is a true 60000mAh

    • +2

      I have their 30000mAh version. They are pretty good. I think it is a reputable brand that we can trust. I didn't count how many times but we can charge our phones and tablets many times with it. It doesn't finish after the second time. (iPhone XS Max, iPhone XR and iPads)

    • I question if this is a true 60000mAh

      Why?

      • Batteries on powerbanks and phones have different voltages so you can't cleanly divide to figure out how many times it can charge your device.

        https://blog.ravpower.com/2017/10/many-times-can-power-bank-...

        • +2

          but powerbanks normally use the same voltage, so you can easily compare them.

          • @samfisher5986: Oh really? I might be wrong then

            • +13

              @Caped Baldy: Power bank cells are rated at 3.7V so the capacity of 60000mAh for 3.7V is correct. The problem is that other battery cells are not rated at 3.7V. Phones are often (but not always) rated at 5V, while laptops can be rated at other levels.

              For simplicity with the phones we use the following conversion. There are other factors including the conversion loss.

              3.7 x 60000 / 5 = 44400mAh

              • +1

                @Clear:

                Phones are often (but not always) rated at 5V,

                Not true, phones always give the cell's mAh rating. It makes no sense to give a 5V rating for a phone as they do not step the voltage up to 5V (for their core power-hungry components). Even if they did, manufacturers would rather quote the 3.7V rating as it would be higher - just like what power bank manufacturers do.

                The discrepancy between a power bank mAh rating and the number of charges you can get out of it is due to the inefficiencies in the boost converter in the power bank and the charging circuit in the phone - which is the conversion loss you mention. I've measured several power banks and the figure is almost always around 20%.

                while laptops can be rated at other levels.

                Laptops typically quote their battery capacities in Wh which skips all the confusion as it takes into account both voltage and current.

        • Batteries on powerbanks and phones have different voltages so you can't cleanly divide to figure out how many times it can charge your device.

          Yes, but the mAh rating of a power bank always refers to the capacity of the cells inside the power bank. So if it has 60,000mAh worth of cells, it is known as a 60,000mAh power bank, as useful as that is.

  • well what happened to the port 5? they have marked the ports from 1 to 7 but 5 is missing??

    • +1

      Superstition

    • +1

      5 is for secret service agents

  • +1

    Such a big device, they could add wireless charging on it. Would have been one complete device with huge capacity.

  • +1

    Will it charge an EV?

    • Lol

    • +3

      It’ll give you about 13mm of range.

    • +2

      It'll roll up the window. That 'bout it.

    • yea mate you can try it

  • +1

    Waiting for a version with a 240v output sine wave inverter tacked on.

  • +3

    The input for charging purposes is too slow. Just 18w input.
    Apparently will take 16 hours to charge which means overnight charging.I am not too comfortable charging a 60000 mah powerbank overnight.

    Feel three 20000 mah powerbanks will give more flexibility in comparison to this and cost the same and probably weigh slightly more.

    • +1

      I agree. I much prefer to have/use/juggle two/three/four 10000mAh/20000mAh power banks rather than One 30000mAh +

      heavylarge Power Bank such as this, unless you have a big and power hungry family that you go away with and really have a use for this.

      • +3

        Even if you have a big and power hungry family,this is not as useful as three 20000 mah powerbanks as all the 4 or 5 members of the family will be stuck to one location only for charging their devices.

        This is only good for camping i think.

      • +1

        The people I know who buy two or three of these are campers or tradies. The average Joe can suffice with the lower capacity.

        • +1

          I am a tradie and also a camper and still prefer to use multipple smaller power banks that I can more easily use/handle/replace

          during normal daily use too. In saying that when I go away camping off grid for a while I take my van which has a 125Ah lithium

          battery in it ( for fridge/lights/inverter etc ) and sometimes even take a second battery box with 60Ah lithium capacity.

  • +6

    That's not a powerbank … this is a powerbank.

    • +1

      I see you've played powerbankyspoony before

    • Its not a PowerBank, its a Power Federal Reserve.

      Too nerdy?

  • +3

    Might as well carry a car battery.

    I think from a practicality point of view. Anything bigger than a 20,000 mah is just too big.

  • Is it allowed in the plane?

    • +1

      no.

      • +4

        Just attach two wings and a propeller, and it can fly next to the plane.

    • +2

      It's 216wh - that's 56wh more than legal max.

      • I thought 100wh was the max?

        • 160wh is max with an airline exemption

  • +1

    Weighs 1.3kg! Don't drop it on your foot! 😱

  • +1

    Power Brick

  • 40000mAh also available with 25% off coupon ES4LHAI3 making it 49.5$

    ROMOSS 40000mAh Power Bank, 18W PD USB C Fast Charge Battery Bank, 3 Outputs and 2 Inputs https://www.amazon.com.au/dp/B094CW2DSV/ref=cm_sw_r_apan_glt...

  • Its just unfortunate it only provides 22.5W. This would be perfect for a USB-C laptop backup supply. If it could do up to 45W (20V x 2.25A) like their fast charging powerbanks can, I would buy it.

    • Yes, not sure why Romoss makes such low output. I have the 40000 mah version and cannot do 18w charge if two devices charge at the same time.

  • Size 180 x 83 x66mm. Not sure why this isn't on the product page.

  • Also weight 1'369 gram D: My back…

  • +1

    Jesus being that heavy and big, I think I would much rather zip tie 2 powe banks together. You get an extra redundancy

    • +6

      Or zip tie two of these together 😉

    • +2

      I have absolutely no idea why you need to fat shame our Lord & saviour.

    • got mine delivered 2 days ago. This thing is big and heavy. love it. took me 2 days to get down to 0 from 70%, I was running out of things to charge