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Ryobi 18V ONE+ 150W Battery Topper Inverter 4Ah Kit $119 Delivered / C&C / In-Store @ Bunnings

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Ryobi 18V ONE+ 150W Battery Topper Inverter 4Ah Kit $119 Delivered / C&C / In-Store @ Bunnings
Go to Deal
revheadgl on 17/09/2025 - 13:52 bunnings.com.au (7700 clicks)
Last edited 19/09/2025 - 12:54 by 1 other user

Part of the OnePass deal. Will be available to non OnePass members from the 18th.

This is a good deal for what you get for $119. Considering the battery alone has RRP of $149. The only other way to buy the topper is in a kit for $149 that does not include a battery, but has a 12v car lighter socket type charger. https://www.bunnings.com.au/ryobi-18v-one-150w-inverter-and-…

You get the 150W battery topper,
A 4.0AH battery,
A 65W USB wall charger.
A 1M USB-C to USB-C Cable,

The battery topper is a newer model but I can only assume it is still a modified sine wave.

It has 1 x USB-C PD port 30W, (Credit to Clear for spotting it). Plus 2 x USB-A ports 15W each, a 150W 240v outlet and an led light. Pic of the USB-C port, https://files.ozbargain.com.au/upload/309005/124117/ryobi_in…

Here is a link to access the only manual I could find (it's from a different kit but the topper itself is the same model) Just scroll down a bit and click on manual.
https://www.ryobi.com.au/products/portable-power/18v-one-150…

Fairly widely available in reasonable numbers with not too many store nil stock. https://bunnings.youinstock.com.au/search/0879021

Electrical & Electronics 18V 4Ah OnePass Big Brands Bonanza Power Inverter Rechargeable Battery RYOBI USB Charger

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  • bluecow on 17/09/2025 - 14:10
    +7

    Thanks OP - have been looking for a cheap option to 'fire/spark' my water heater during a power cut. Using my UPS was a pain.

    • mauricem on 17/09/2025 - 14:26
      -6

      This has max capacity of 150watts, eg a couple of incandescent light bulbs, not sure what sort of water heater you have but its either going to be a very long wait or more likely totally unusable.

      • wongm on 17/09/2025 - 14:32
        +27

        I'm guessing they've got an instantaneous gas hot water service - they need a mains power supply to light the gas burner that actually heats the water.

        • cydia9k on 17/09/2025 - 14:57
          +5

          Huh, okay I guess I need this

        • bluecow on 17/09/2025 - 14:58
          +1

          Yes, that's what I have.

        • mauricem on 17/09/2025 - 17:00
          +5

          Gotcha, the word spark should have been my clue, doh! We've got a Joolca portable HWS which works the same as fixed instantaneous but sparks off a couple of D cells which so far have been good for 4 years. Would seem to be a good idea to incorporate into fixed systems as a redundancy option for power outages.

        • ocular on 18/09/2025 - 07:54
          +2

          Bosch has an instantaneous unit that lights without a battery or AC connection. The internal water flow spins a turbine that generates enough for self ignition. Good for off-grid.

    • Averell on 17/09/2025 - 16:56
      -2

      Does it work as a true UPS? How long does it take to switch from the power consuming mode to a power source?

      • lomie on 17/09/2025 - 17:09
        +5

        This Ryobi Battery Topper isn't a UPS.

      • McFly on 17/09/2025 - 20:38
        +2

        What's with all the people who want a UPS but don't (want to) buy a UPS???

        • ATangk on 17/09/2025 - 21:02
          +2

          To be fair, UPS's are ridiculously heavy…

          • McFly on 17/09/2025 - 22:40
            +1

            @ATangk: Yes, they are just heavy for no reason at all.

        • Averell on 18/09/2025 - 08:16

          My neighbour gave me an Eaton that was still in its box and I have never opened it. Too chunky.
          I have a bunch of Ryobi batteries + tools, and I also need an uninterrupted power source for my RaspPi. 2 days ago I tried to pull the Eaton out, but I felt its weight, so I pushed it back. It's ridiculous to use that to power the RaspPi.

          • m13 on 18/09/2025 - 09:29

            @Averell: To power a RaspPi, I would buy a charging brick that can charge and provide power out simultaneously and can output enough to run the Pi. A simple small UPS sorted. I plan to do the same for mine if I use them again and they're not near an actual UPS.

            I had an Eaton 5S1200 in the past which I didn't think was too bad. They've got a couple of SLA batteries inside them, so they're going to have some weight to them. I ended up upgrading to the 1600 size batteries when the originals died because they're the same size.

          • McFly on 18/09/2025 - 11:30

            @Averell: 🤷‍♂️

    • OzTech74L on 17/09/2025 - 22:21

      This! We recently had a power cut for 1 hour and had to take a shower so this comes in handy. I think I bought mine a while back for the same price.

  • seriousquokka on 17/09/2025 - 14:17
    +1

    Pure sine wave?

    • seb on 17/09/2025 - 14:23
      +3

      On the Ryobi Website, doing a "product Comparison", apparently only the 36V 300W has Pure Sine Wave, RBT36300. Others are Modified Sine Wave.

      • incipient on 17/09/2025 - 15:01

        Is there much of a difference at relatively low power?

        • BrotherEstapol on 17/09/2025 - 15:22
          +4

          It's more about the stability I think? Thing I see most is that laptops are quite sensitive to Modified.
          If you're just running a fan from it I'm sure it's fine; just don't use anything expensive?

          • incipient on 17/09/2025 - 15:31
            +3

            @BrotherEstapol: Appears you're mostly right. It depends HEAVILY on how 'good' the modified sine wave is, and how much of a spike in amps it has when switching, which can overstress protection circuits in electronics. Essentially risks blowing up your charger.

            Something like a fan/etc that isn't sensitive to current should be fine.

            Essentially, seems mostly undesirable for 95% of cases.

            • BrotherEstapol on 17/09/2025 - 15:34

              @incipient: People mention laptops a lot, but I wonder what it's like now with most using a 65w USB-C outlet? The specs to mention that the inverter will shutdown if overloaded, so it seems to at least be safe even if it doesn't work with everything.

            • JaymeRyan on 18/09/2025 - 08:01
              +1

              @incipient: I could be wrong, a fan, will have a motor, and if the fan is AC based, will be an issue to the fan.

          • chyawala on 17/09/2025 - 15:45
            +1

            @BrotherEstapol: May as well just use a PD power bank for a laptop instead of inverting and stepping down voltages.

        • GreenLego on 17/09/2025 - 15:28

          It depends on the appliance. My fish tank filter is low power, like 2.5W or something, but relies on the sine wave to spin the impellor properly. Some UPS works with the filter, while others don't.

        • nessism on 18/09/2025 - 06:51

          The safe/short answer is: yes.

        • outlander on 18/09/2025 - 15:55

          Depends what you're running. I use a cheap modified sine wave unit to power the small pump in my solar hot water system (otherwise the sun cooks it and it can't reset until nighttime)

          The harsh transition from -230v to +230v causes the pump to 'ring', and it vibrates more and causes more heat. That seems to be mostly where the issue is, pumps and motors. Anything like a laptop or phone uses their own charging circuit, which filters out most of the harm

  • liam2040 on 17/09/2025 - 14:19
    +11

    Looks great, now waiting for Ozito to bring out a version

  • get-innocuous on 17/09/2025 - 14:27
    +1

    Loving the ryobi green charging cable

  • Porker on 17/09/2025 - 14:30
    +1

    What's the purpose of the 65W wall charger for this kit? Can the inverter charge the 4A battery via the USB-C wall charger?

    Initially seemed odd to have charger when you could simply plug the USB-C cable into the inverter if you needed to charge another device.

    • wongm on 17/09/2025 - 14:33
      +2

      Charge a ONE+ battery using the Battery Topper Inverter’s USB-C PD port and included USB-C Cable. Connect the USB-C Cable to a USB wall charger, USB wall outlet or the included 65W 230V AC Wall Charger to start charging.

      • pjetson on 17/09/2025 - 15:34
        +1

        Does that mean you can use the inverter to charge the battery that's running the inverter? :-)

        • buyer-123 on 17/09/2025 - 16:06
          +2

          infinite POWAHHH

    • revheadgl on 17/09/2025 - 14:35

      You can use it to charge the battery. Or just use it as a standalone. I plan on putting the USB charger and cable either in my mobile tool box or a travel bag..

  • IndyXIII on 17/09/2025 - 14:40
    +1

    Thank OP, been looking at one of these for a while now. No one pass but will try my luck on the 18th

  • Summoner on 17/09/2025 - 14:46
    +20

    I feel like I should get this, even though I don't need it.

    • stuffandthat on 17/09/2025 - 15:22
      +5

      A true OzBargainer.

    • clintdb on 17/09/2025 - 15:29
      +5

      You have found your people here.

    • seamonkey on 17/09/2025 - 16:24
      +1

      isn't that pretty much every purchase ever made in all of human history?

      • Cheap Gamer on 18/09/2025 - 17:38
        +1

        Yes, except vegetables. My wife says I need to buy them, even though I don't want them.

  • Low Punt on 17/09/2025 - 14:56
    +3

    What’s the realistic use case for this? It feels useful but I can’t think of when I’d need it 😂

    • stuffandthat on 17/09/2025 - 15:23
      +4

      Buy, use battery in of your other tools, forget about the topper.

    • BrotherEstapol on 17/09/2025 - 15:23

      When you want to power something but don't have a power outlet available? When the power goes out?

      • Low Punt on 17/09/2025 - 15:30

        My immediate thought was “this will be geat for power outages” however I haven’t had an outage in 5 or more years.
        Buy now think later 😂

      • BewareOfThe Dog on 17/09/2025 - 15:33
        +1

        I use one outside to charge my MacBook, or phone when the charge runs low. Handy near the pool as well.
        Unsure how much charge it would give our Pool Cleaner, though.

    • dav3 on 17/09/2025 - 15:41
      +3

      Since when is this place about needing things?

      I got one a year or two ago for camping to charge things like camera batteries (my old camera didn't have in body charging via USB), and also use it to charge my Ryobi batteries while away with a 20W solar panel. It doesn't get a lot of use but it's handy to have.

    • cski on 22/09/2025 - 09:14

      I have this kit, mine actually came with a solar panel and charges via the usbc cable

      I find it most useful as a portable charger for the ryobi battery, i broadly dont even use the inverter function

      I think its a great car charger or household charger for 18v batteries

      The traditional ones i find inconvenient this is smaller and without need on transformer block

  • NonSense on 17/09/2025 - 14:59
    +6

    So.. big power bank?

    • McFly on 17/09/2025 - 16:26
      +2

      No - power bank + inverter.

      • NonSense on 17/09/2025 - 16:53
        +2

        So a power bank to charge power bank…

  • hnxhyz on 17/09/2025 - 15:03

    Can I use this to charge my car battery, I had Ozito 12V 4 Amp Battery Charger.
    https://www.bunnings.com.au/ozito-12v-4-amp-battery-charger_…

    • siuol on 17/09/2025 - 22:12

      not sure how long you want to charge the car battery…. comparing the size of the car battery to a 4 or 5.2A I dont think you can add much power into the car battery.

    • HrbBr on 18/09/2025 - 12:13

      Would love to know if anyone tried it as well. It sucks that I have to park on the street and don't have an outlet to charge the battery every now and then.

      • hnxhyz on 18/09/2025 - 14:16
        +1

        I asked Chatgpt, not really good for car battery recharge due to low capacity. Only 18v x 4ah=72Wh. However, the car battery normally 40ah to 70ah@12v =480 to 840Wh.

        Use Ryobi battery 72Wh can only recharge 500Wh car battery 10% to 15% .

        • HrbBr on 18/09/2025 - 15:36

          Thanks for that

      • outlander on 18/09/2025 - 16:00

        I tried using a cheap step-down converter to top up a battery from a drill battery. It works, but it eventually burned out so you need to use heatsinks or current regulation.

        It's a little annoying though, because most cars don't engage the battery through the cigarette port if the car is off. And if you forget the battery is there and start the car, you are likely to explode it.

  • nfr on 17/09/2025 - 15:10
    +1

    Looks cool but I'm not sure what to do with it. What's the normal sales price for the battery?

    • stuffandthat on 17/09/2025 - 15:23
      +1

      $149 for the battery, and $149 for the other topper. Pretty good deal for $119.

  • ezza on 17/09/2025 - 15:10

    I get a little confused with Amps and W's.. any idea if I could use this as some sort of back-up to charge an EV car?
    If so, my question might be…. how much battery life can an EV get out of a 4.0AH battery?

    • seb on 17/09/2025 - 15:20
      +5

      Ummm, not sure if troll or not. car battery is something like 60,000Wh energy capacity. This battery is maybe 15Wh.

      • ezza on 17/09/2025 - 15:39
        +1

        Nah not a troll… just curious if its something I should invest in as a backup even for a quick 20-30km worth of charge.
        Seems like a few answered my question below!
        Thx y'all.

      • HexZyle on 18/09/2025 - 08:41

        The battery is 72Wh but your point still stands

      • Richardc on 17/09/2025 - 16:19
        +1

        4Ah*18V=72Wh

    • inrover on 17/09/2025 - 15:27

      No. Even if you had a thousand batteries the max output of 0.65 Amps is less then a tenth of the slowest granny charger for an EV.

    • annearj on 17/09/2025 - 15:25

      Doesnt the Ozito inverter use the car 12v battery?

      • BestTechAdvisor on 17/09/2025 - 15:28
        -2

        I'm confusing two. There's an Ozito 12V inverter and there's a 3rd party inverter for Ozito 18V batteries. Both are half the price of this Ryobi inverter, though.

  • dufflover on 17/09/2025 - 15:19
    +1

    I thought this product didn't rate very well previously on OzB cos it wasn't pure sign wave? I don't know much about the product type though so maybe I've misunderstood.
    https://www.ozbargain.com.au/comment/14534506/redir

    Using battery RRP is a bit off for OzB given like Ozito there's deals that no on this site should actually be paying that if not in a rush.

    • King Tightarse on 17/09/2025 - 15:31

      Right - every Ozbargainer gets the batteries as part of a kit that is on special and pays with discounted gift-cards.
      (no one pays retail for the batteries)

  • IdBuyThat4aDollar on 17/09/2025 - 15:26

    Any ideas how long a 4ah battery would last through the inverter powering a 150w device?

    • King Tightarse on 17/09/2025 - 15:34
      +2

      I would guess around 20 minutes (Watts = Amps x Volts)

    • BestTechAdvisor on 17/09/2025 - 16:19
      +2

      18V * 4Ah = 72Wh

      72Wh / 150W = 0.48h

      0.48 hours = 29 minutes

      … in a perfect world with no efficiency losses.

  • RandomBob84 on 17/09/2025 - 15:28
    -1

    I found something similar, but much more powerful. With everything going usb c, i was looking at making/getting a USB C PD 100w AEG 18v battery topper (as i am in the AEG 18v ecosystem. Came across this, so i just go it with a aeg to ryobi converter..
    https://www.aliexpress.com/item/1005007068251011.html?spm=a2…

    This thing (in top spec model) can do 140w out of USB PD port 1 while simultaneously pushing out 45W on usb c port 2 and 40w on the USB-A. Total USB power output is 225w!!!
    And it can charge a ryobi battery via usb C in!

    I feel its much better than the Ryobi device.

    • incipient on 17/09/2025 - 15:34
      +2

      Friends don't let friends use random brandless Chinese inverters/converters.

      On ozb, we're friends.

      • studentl0an on 17/09/2025 - 15:59
        -4

        Do you have schematics of each so you can confirm that there is quality difference?

        For all you know the Aliexpress one could even be more efficient and provide more stable output voltages in addition to having better functionality.

        • incipient on 17/09/2025 - 16:01
          +1

          You're absolutely right! That's how probabilities work. It's just not worth taking the risk that a random brandless product, with no reputational or legal liability is going to put out an amazing well designed product.

          BOE took a risk trying to pull a swift one on Apple. Do you really think this product is going to be top shelf?

          But hey, not my electronics being plugged in haha.

          • studentl0an on 17/09/2025 - 16:03
            -1

            @incipient: You have no idea what the quality is like. You are only saying because it has no brand name that it's bad. Where do you think all the OEMs such as Ryobi source their parts from? It's the same factories that produce these no brand Aliexpress goods.

            It doesn't even have an inverter in it yet you wrote it does. It only uses DC to DC boost/buck converters.

            • incipient on 17/09/2025 - 16:06

              @studentl0an: Yeah, so they take a ryobi design, with verified components, swap them out for whatever is a 10th of the price, and sell "the same thing".

              • studentl0an on 17/09/2025 - 16:06
                -1

                @incipient: It's a completely different design with different functionality.

                Ryobi does the exact same thing. They are not spending more than they need to. Infact Ryobi have larger profit margins to maintain to pay for all the extra marketing.

                You have no idea what you are on about - "verified components" LOL!

      • RandomBob84 on 18/09/2025 - 00:12

        Might help if you read up on it. The brand name is Symik. They mainly do drone accessories like Mavic battery chargers and such. So they have th ebattery charging know how. And they have been using ryobi batteries themselves, so they developed this initially for themselves.
        So in my opinion not some random if they are making their own DJI drone multi port chargers and such..

    • effgee on 18/09/2025 - 11:16

      Thanks for the link, it does seem like a good product based on specs, but it's always a dice roll on Aliexpress, I've bought a lot of stuff on Aliexpress.

      The battery makes this a good deal, and for me at least the extra power is not of great value to me.

  • Wimma on 17/09/2025 - 15:34

    Not great for 240V use, but very handy for the usb ports on those camping trips.
    Handy portable powerbank for those of us with way too many batteries.

  • jiancoek on 17/09/2025 - 15:35
    +11

    Thinking to start garden power tools, which ecosystem is better? Ryobi or Ozito ?

    • Windows98 on 17/09/2025 - 15:38
      +3

      Ryobi has a wider range

    • jiancoek on 17/09/2025 - 15:39
      +6

      Why neg for question. That is mean ?

      • King Tightarse on 17/09/2025 - 15:46
        +8

        Please ignore the neggers. There are some weak people here that neg anything - even a totally reasonable question.
        As for your question - I think in time most OzBargainers end up with both systems as various excellent deals emerge.
        I would not particularly say one brand is generally better or worse than the other, they are both basic and adequate, although sometimes an individual tool may be better with one brand over the other.

      • revheadgl on 17/09/2025 - 15:47
        +8

        No idea why you got negged. It's just a question. Upvote to help correct.

        Either brand will get the job done. Both make decent tools.. Ozito is less expensive and there are more frequent sales. As to which is better? I have tools from both brands and they all get the job done. I feel Ozito is generally the better value.

    • NigelTufnel on 17/09/2025 - 16:15
      +1

      Benefit as I see it for Ozito over Ryobi is there is one battery system for 18V and 36V tools. So you can run a 36V mower, trimmer, blower etc on 2x the same batteries as your drills, saws etc.
      For Ryobi the 2 systems are not compatible. 36V tools are essentially a different ecosystem to the 18V stuff.

    • BestTechAdvisor on 17/09/2025 - 16:24
      +1

      100% Ozito.

      With Ozito, you can run two 18V batteries in parallel to achieve 36V.

      With Ryobi, you need to buy specific 36V batteries that are very expensive.

      Ryobi does a have wider range, but it's much more expensive and I don't know how many varieties of 18V lights you really need. You can also get a wide range of 3rd party Ozito / Einhell accessories on AliExpress.

      I was well into the Ryobi ecosystem previously but am slowly selling all my lime tools for red ones.

    • Make it so on 17/09/2025 - 16:27
      +1

      Ozito is Bunning's homebrand. I bought a few tools from it, but I didn't find the quality comparable to entry-level Bosch or Ryobi. I had a corded leaf blower that was used twice before dying, and my corded hammer drill died just outside the 3-year warranty. My Ozito reciprocal saw can't saw straight unless I hold it at an Angle. I only buy Ozito for tools I plan to use once.

      • NigelTufnel on 17/09/2025 - 17:51

        Interesting that has not been my experience at all. I have probably >20 onto tools and use them regularly and only the chainsaw head on one of the tools broke after 3 years and bunnings replaced it.

      • goingDHfast on 12/10/2025 - 14:19

        Ryobi is also exclusive to bunnings FYI.

        Bunnings calls themselves warehouse prices but it's actually a scam monopoly when you scratch the surface.

        • Make it so on 12/10/2025 - 15:49

          Is it? Because there seem to be businesses selling Ryobi through eBay and Amazon.
          There's a difference between having exclusive rights to a brand and owning a brand though. But I do very much agree about the monopoly. I was very unhappy when Masters didn't make it, because they provided competition and some of the stuff they sold was simply of a better quality (I still have outside lights from Masters, going strong for >10 years. Most Bunnings ones last for a few years only).

  • Slave1 on 17/09/2025 - 15:36

    Can anyone share a link to the Ozito version of this? Can’t see to find it on the Bunnings website. I’d like to compare

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