inverters

Discussion in 'Tech/Mech General' started by Peter & Elaine, Aug 26, 2013.

  1. Peter & Elaine

    Peter & Elaine Funster

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    Help please
    Have just got my hands on a 2100 watt modified sine inverter and it has has in instructions that it may not be suitable for all equipment and states that a pure sine inverter may be more suitable

    What the hell are they on about
    We have in van
    The usual power requirments of most people such as phone and laptop charging a 700 watt microwave
    But what I want is a good quality hd 27 or 28 inch tv and cant find a good one on 12 volt I really do like samsung ones

    And I am a little unsure about this issue with modified and pure

    Due to fact that we very rarely use electric hook up and rely on 2 × 110 batterys with a solar panel on roof that will charge about 7 amp on a good day I want to get this right before I spend my hard earned dosh or worse blow some thing up
     
  2. Chockswahay

    Chockswahay Funster

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    My understanding is that very 'sensitive' stuff like laptops etc require pure sine wave. Things like toasters and kettles etc will be fine.

    Hopefully someone will be along who can help you more.

    To be honest I'd be more worried about the sheer amount of amps you will get through :Eeek:
     
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  3. Ed Excel

    Ed Excel Funster

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  4. GJH

    GJH Funster Life Member

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    Me too. You could well be looking at 30-40W once the inverter inefficiency is taken into account.
     
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  5. pappajohn

    pappajohn Funster Life Member

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    as already said Peter, most motors, lighting and all heating elements will work fine on mod sinewave but electronics COULD be terminally damaged.

    you do realise that if you use the inverter to its full potential it will drain your battery bank in around 40 minutes...at 2100w it will draw 175amps per hour....and your solar at 7amps is going to take just under 16 hours to put back 110amps.

    probably better to bite the bullet and buy one like this for tv and charging use.


    http://item.mobileweb.ebay.co.uk/viewitem?sbk=1&nav=SEARCH&itemId=181108464084
     
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  6. Peter & Elaine

    Peter & Elaine Funster

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    Thanks pappa john I knew it would be no good when I opened box and saw power cables like bloody jump leads
    Thanks for link
    Anyone want a cheap invertor :thumb:
     
  7. pappajohn

    pappajohn Funster Life Member

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    not worth risking a few hundred quids worth of tv on the wrong power source in my book.
     
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  8. vwalan

    vwalan Funster

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    in almost 9 years of using an inverter in my trailer i havent found anything i couldnt use . mind my mate bob as a fridge that is choosey what inverter it requires works on some not others . i power tv . laptops fridge .washing machine . you name it . i used to have a ring 2kw . but that failes earlier this year lasted well though . i tend to use it all year round . at moment its powering the fridge in the house . come november it will power fridger freezer in the trailer and anything that requires 240v .
    i,m not certain but i think its a waste getting the pure sign wave inverters .
     
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  9. Terry

    Terry Funster

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  10. voyagerstan

    voyagerstan Read Only Funster

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    60 watt quite heavey consumtion i think :Doh: stan
     
  11. Terry

    Terry Funster

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    Just how many watts do you think a 32 ins tv should use ? Not many that size use less plus it's 12v with all the bells and whistles :Smile:
    They do smaller versions just that OP said 32 ins so I assume they will be on HU or have a big battery bank from which to run it :BigGrin:
    Terry
     
  12. Steve_UK

    Steve_UK Read Only Funster

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    Or per minute, or per day, or even per second!

    :Rofl1:
     
  13. Peter & Elaine

    Peter & Elaine Funster

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    Thanks terry its a good deal but I just measured up and as I thought its max 28 inch otherwise it juts out into passage way
     
  14. Terry

    Terry Funster

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    Last edited: Aug 26, 2013
  15. Peter & Elaine

    Peter & Elaine Funster

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  16. voyagerstan

    voyagerstan Read Only Funster

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    26 in is 55watt 30in is 60 watt quite alot of watts :Wink: stan
     
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