Invertors

Discussion in 'The Beginner' started by ianhyslop, Apr 13, 2015.

  1. ianhyslop

    ianhyslop Funster

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    explain to me like I'm a 6 year old , when I am on leisure battery some of my appliances don't work , tv , microwave , kettle etc . I have been told that a inverter would sort this all out . Please help .
     
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  2. Techno

    Techno Funster Life Member

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  3. John Laidler

    John Laidler Funster

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    Or to put it perhaps more briefly, an inverter will produce 240 volts from your 12 volt battery supply.

    But in the real world this doesn't mean you can run things like electric kettles, the batteries will be flat in minutes.

    A microwave is possible but you will need lots of solar power to recharge the batteries. TV much easier but a 12 volt TV is better as the inverter has losses.
     
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  4. ianhyslop

    ianhyslop Funster

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    Thank you beekeeper , that's a start . Thanks also to you techno but the clue is in the first line of my thread .
     
  5. Techno

    Techno Funster Life Member

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    Read the download and when you're 7 ask the bits you don't get (y)
     
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  6. Eddystone

    Eddystone Funster

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    I think we may have to start at 5yrs first to understand the down load. It is a good guide but I think Ian may need to appreciate power first.
     
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  7. funflair

    funflair Funster Life Member

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    When you are on Batteris some things don't work as they need to be plugged into 240 volts, your hook up lead connects the 240 volts to the sockets in the motorhome. As other have said you can make 240 volts from your 12 volt batteries with the thing called an inverter and this can connect to all your 240 volt sockets just like the hook up lead does BUT and it is a big BUT you need a decent amount of battery power and plenty of solar to recharge the batteries and you need to understand what you are using from your batteries as you use 240 volt appliances and you need to know that you can put enough back into the batteries to get you through the night when the sun is not shining.

    Sounds quite simple really doesn't it?.

    I think you need to understand watts volts amps and ah, I tried to explain it to my wife while we in Spain as we only has 6kwh per day from the hook up so we're using our inverter as well, she is a few years over 6 but still struggled, in fact by the time we were finished I was confused as well.
     
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  8. John Laidler

    John Laidler Funster

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    OK, your MH has effectively two electrical systems. One is connected to all your 240 volt appliances and sockets then there is a second set of wires which runs at 12 volts. If you are not plugged into an electric hook up (EHU) then you won't get anything out of the 240 volt side. The 12 volt side will work of course but all its power comes from your leisure batteries, which have a finite capacity, unless you have a solar panel to top the batteries up.

    When on EHU your MH should recharge your leisure batteries, but the reverse doesn't happen, 12 volts won't become 240 volts. Unless, that is you have an inverter, which does just that - and ignoring for the moment the waveform produced, which is a separate issue altogether.

    However, there are many questions to be answered first before deciding what is the best inverter for you or even if you need one at all. At a guess I suspect only a tiny minority of MHs have them, although most of them are probably members here and you might get the impression they are an essential! I've got a tiny 150 watt unit from Maplins which I use to recharge my camera and the cordless vacuum cleaner. Everything else in the MH runs on 12 volt.

    So the first question is what do you need which has to have 240 volt?
     
    Last edited: Apr 13, 2015
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  9. Eddystone

    Eddystone Funster

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    If you are on line Ian would you please let us know if these replies are helping.
     
  10. bubble63

    bubble63 Funster

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    mmmm.....

    Had exactly this same conversation with my father in law

    'i need an inverter' he said

    ' no you don't ' said me, 'you need to do a lot of reading and then you still won't need one'

    he still doesn't have one :LOL:
     
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  11. Techno

    Techno Funster Life Member

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    I've got a BIG one :p
     
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  12. funflair

    funflair Funster Life Member

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    He has I've seen it!!.


    So have I as it happens.
     
  13. Gorse Hill

    Gorse Hill Funster

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    His battery flat, with no EHU
     
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  14. scotjimland

    scotjimland Funster Life Member

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    You were told wrong.. you need an inverter + a big battery bank + solar panels .. and a big £wedge,,

    I'll keep it simple.. forget an inverter..

    Buy a TV that can be used on 12v.. Finlux do a nice 22" one for about £120

    Forget running a micro wave, kettle, toaster, hair dryer, etc from your battery...

    Think camping.. think GAS .. think 12v .. and keep it simple..
     
    Last edited: Apr 14, 2015
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  15. andy63

    andy63 Funster

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    It's starting to make a genny sound attractive....
    I'll duck for cover now lol
    Ta andy
     
  16. laird of Dunstan

    laird of Dunstan Funster Life Member

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    I used to fit and commission inverters, the early ones took two guys to lift.

    I'm planning on a solar and gas combo ,and maybe a small inverter for charging phones etc whilst off grid
     
  17. scotjimland

    scotjimland Funster Life Member

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  18. Gorse Hill

    Gorse Hill Funster

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    Did you know that all the batteries in the world would only be enough to keep us going for 10 mins, pretty much sums up there limitations
     
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  19. jezport

    jezport Funster

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    Buy a small inverter for the TV and forget the rest they are too power hungry for most setups. Thats unless you are going to spend some serious cash
     
  20. Jonkil

    Jonkil Funster

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    OK.
    Your kettle/microwave won't work on an inverter because inside the little inverter house lives tinky winky and dippy but they can't peddle the little bike fast enough to make it work.
    If you try and make it work you may need a bigger inverter house with 2 tandem bikes where tinky winky and dippy can get La-La and Po to help peddle faster and make the kettle work..... but there is a problem in tellytubbby inverter land when the 4 of them says no no and fall of their bikes all tired and need to sleep to get their energy back. But tomorrow if the sun shines they will try again.... bye bye.
     
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