[Refurb] Renogy 1000W Pure Sine Wave Inverter with UPS Function $143.45 Delivered (after 20% coupon) @ Renogy eBay

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[Refurb] Renogy 1000W Pure Sine Wave Inverter with UPS Function $143.45 Delivered (after 20% coupon) @ Renogy eBayAffiliate
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FLICKIT on 02/06/2025 - 20:56 ebay.com.au (304 clicks)
Last edited 03/06/2025 - 00:14
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In the photo it says "Refurbished" but that's not mentioned in the title or description, and the description says 'Brand New: A brand-new, unused, unopened, undamaged item in its original packaging', so they may just be clearing stock?, I don't know…

These are an 'ok' quality inverter, I use one of these in my campervan to recharge my e-bike, no complaints… While idle it draws about 1amp so be mindful of that parasitic drain, don't leave it turned on if you're not using it… As it warms up efficiency seems to drop off a bit and it draws a little more power..

Personally I'd only run these cheaper inverters at about half of their rated output, it would probably do 1000w ok but it's likely to get pretty warm and inefficient I suspect..

Renogy website link: https://au.renogy.com/renogy-1000w-12v-to-230v-pure-sine-wav…

Manual: https://au.renogy.com/content/manual/PUH1000Manual.pdf

EDIT & note:
I just ran a quick rough test of the UPS function…

Inverter on, 12vdc connected, no AC load, no AC connected = 0.66A DC

Inverter on, 12vdc connected, no AC load, AC connected = 0.33A DC

This is a concern if you want to use it as a UPS, you'd need solar or a mains charger connected to the battery all the time because it's going to consume 8Ah per day from your 12v battery while being used as a UPS with AC connected… (about 100WH, 0.1KWH per day from the DC side while on standby in UPS mode with AC connected)

I'm a bit miffed by this, I expected there would be zero DC consumption while the AC is connected…

Electrical & Electronics 12V Power Inverter Renogy

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Comments

  • SAU on 02/06/2025 - 22:03

    1A on DC side?
    I wanted to run it as garage door opener backup - mains on all time unless have a power cut. But if its drawing 12v on DC even with AC available, then I would also need to have a charger conned to a battery too

    • eddyah on 02/06/2025 - 22:12

      1A on the AC side would be 240W…

    • FLICKIT on 02/06/2025 - 23:02
      +2

      Yes, close to 1amp DC when idle, while just using it as a DC inverter, I believe it's fairly typical of cheaper inverters, but the Renogy is the only one I've played with so I have nothing to compare it to..

      I haven't tinkered with the UPS function of this inverter, I suspect the DC side is all basically disconnected and not drawing any DC power while there's AC power connect, then if AC drops, the DC side activates and it would be drawing the 1 amp while sitting there idle…

      If I find time, I'll do a test with a couple of smart plugs on the AC and my Victron Smart-Shunt on the DC and test the UPS side of things..

      Edit: the manual doesn't give too may details: https://au.renogy.com/content/manual/PUH1000Manual.pdf

      If I had to guess, I suspect it just has a relay that's 'on' while there's AC power, and if the AC drops it causes the relay to drop out which activates the DC side….

    • FLICKIT on 03/06/2025 - 00:01
      +2

      I just ran a quick rough test with no AC load…

      Inverter on, 12vdc connected, no AC load, no AC connected = 0.66A DC
      Inverter on, 12vdc connected, no AC load, AC connected = 0.33A DC

      This is a concern if you want to use it as a UPS, you'd need solar or a mains charger connected to the battery all the time because it's going to consume 8Ah per day from your 12v battery while being used as a UPS with AC connected…

      • SAU on 03/06/2025 - 01:05

        Yeah, thats what I thought

        • FLICKIT on 03/06/2025 - 10:49

          A parasitic drain with zero load is common with all inverters I believe, the good Victron ones are much the same, they consume 8 to 10 watts with no load:
          https://www.victronenergy.com/upload/documents/Datasheet-Inv…
          But I’m surprised there’s a drain while in UPS mode with AC connected, to be honest I hadn’t put too much thought into it, I just figured it would be next to nothing…

          0.33A = 8AH per day is quite a significant loss really, it certainly takes the shine off using them as a DIY UPS… You'd near want to have a 100w solar panel connected just to cover those losses year round, being mindful of short winter days and potential days on end of overcast or rainy weather… (a 100w panel produces like 20+AH per day in sunny weather)

  • MrZ on 02/06/2025 - 22:53

    I wish I was smart enough to know how 12V can become 240V. It seems mindblowing to me.

    • FLICKIT on 02/06/2025 - 23:08
      +3

      It's all about the watts, keeping it simple watts are volts X amps, it takes about 12.8v - 86amps (@ 90% efficiency) to make 240v 1000w = about 4amps AC… You draw big amps to convert 12v to 240v…

    • ATangk on 02/06/2025 - 23:11
      +1

      12V ac to 240V ac is one of the easiest, just do 1 coil into 20 coils.

      Its changing it from DC to AC which is fancy if you want it as a pure sine wave. Lots of transistors (switches)

    • outlander on 02/06/2025 - 23:15

      For $5 you can get a module to change 4v into 4000v :)

      It is amazing, but it's not as complex as it seems.

      • eug on 02/06/2025 - 23:30
        +1

        It is amazing, but it's not as complex as it seems.

        The complexity comes in when you want a clean pure sine wave output with high efficiency and low standby power usage in a reasonably compact package with a fast switchover time for the UPS feature that lasts a long time for an affordable price. :)

        • FLICKIT on 02/06/2025 - 23:38
          +1

          Agree, you get what you pay for with things like this, which is why I 'think' it's wise not to push cheap inverters to their max rating…

          Trying to drag 1000w out of this it's likely to get stinking hot and the efficiency is likely to drop right off…

          If someone wants an efficient inverter to run at it's max rating they need to spend the money on a Victron or the likes…

  • aNoPHeLeS on 03/06/2025 - 05:04
    +1

    Thanks op. Wondering about inverters - how's kings, kickass, or stuff you get at jaycar or sca compare? Any issues running these with electronic equipment (even if pure sine wave)?

    • FLICKIT on 03/06/2025 - 11:19
      +1

      I don't really know, I suspect all these cheap name brand pure sine wave inverters (including Renogy) would be much of a muchness, I haven't heard of any issues with any of them… A lot of people I come across on the road run these cheaper inverters for things like laptop chargers, tv's and such, and they seem to do fine.. .

      This Renogy is the only one I've played with and I haven't used it a huge amount… While cycling and capacity testing LiFePO4 batteries I needed a load so I ran my home TV, sound system, and PC monitors off the inverter for a few hours, and there was no issues… My only 'real life' use of this inverter is for charging my e-bike in my campervan, and that's quite a small load…

      It's probably not wise to push any of these cheapies at their max rated power for any amount of time, it would probably be asking for trouble, you tend to get what you pay for with this sort of gear… Like, a 1000w inverter would probably be fine running at 700w for longer periods, but if you ran it at 1000w for an hour it'll probably get stinking hot and efficiency will drop off significantly…

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