1500w 12v DC to 240v AC at just under 22 quid; is it too good to be true?

http://www.ebay.co.uk/itm/New-1500W-...ectid%3D169391

On 20/08/2016 01:28, Weatherlawyer wrote:

1500w 12v DC to 240v AC at just under 22 quid; is it too good to be true?


Presumably taking 140A from a car 'cigarette' lighter socket!

Or flattening the average car battery in a very short time using the
alternative leads.

The device is probably specified as peak power during the spikes on the
"modified output sine wave"

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Not going to run a lot on 1.5kw though are you.
Brian

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"Weatherlawyer" wrote in message
...
1500w 12v DC to 240v AC at just under 22 quid; is it too good to be true?

http://www.ebay.co.uk/itm/New-1500W-...ectid%3D169391

On 20/08/2016 01:28, Weatherlawyer wrote:
1500w 12v DC to 240v AC at just under 22 quid; is it too good to be
true?

http://www.ebay.co.uk/itm/New-1500W-...ectid%3D169391



It looks like the 12V cable would melt at 1500W (well over 100A).

On 20/08/2016 01:28, Weatherlawyer wrote:
1500w 12v DC to 240v AC at just under 22 quid; is it too good to be true?

Work of pure fiction. Chinese watts must be 10x SI watts.

http://www.ebay.co.uk/itm/New-1500W-...0V-AC-USB-UK-/

See note 1. It is guaranteed to work for perhaps at most 10 minutes from
new and will promptly expire if you try to use at "rated" power.

Reasonable ones rated ~300W can be had for about that sort of price and
that is a more realistic current draw from a car battery/cig lighter.

Try Amazon for ones that might actually work at a decent price.

Regards,
Martin Brown

On 20/08/16 09:31, Martin Brown wrote:
On 20/08/2016 01:28, Weatherlawyer wrote:
1500w 12v DC to 240v AC at just under 22 quid; is it too good to be
true?

Work of pure fiction. Chinese watts must be 10x SI watts.

http://www.ebay.co.uk/itm/New-1500W-...0V-AC-USB-UK-/


See note 1. It is guaranteed to work for perhaps at most 10 minutes from
new and will promptly expire if you try to use at "rated" power.


That is peak power, and not continuous thermal power.

In all probability its good for about 500W.


Reasonable ones rated ~300W can be had for about that sort of price and
that is a more realistic current draw from a car battery/cig lighter.

If you want to put 25A through a car ciggy lighter be my guest.

Mine is fused at 15A !!!!!




Try Amazon for ones that might actually work at a decent price.

Regards,
Martin Brown


--
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"I don't."
"Don't what?"
"Think about Gay Marriage."

In article ,
Martin Brown wrote:
On 20/08/2016 01:28, Weatherlawyer wrote:
1500w 12v DC to 240v AC at just under 22 quid; is it too good to be true?

Work of pure fiction. Chinese watts must be 10x SI watts.

http://www.ebay.co.uk/itm/New-1500W-...0V-AC-USB-UK-/

See note 1. It is guaranteed to work for perhaps at most 10 minutes from
new and will promptly expire if you try to use at "rated" power.

Reasonable ones rated ~300W can be had for about that sort of price and
that is a more realistic current draw from a car battery/cig lighter.

Try Amazon for ones that might actually work at a decent price.

Fag lighter sockets are generally rated at 10 amps. So 120 input watts.
And I'd personally not trust any at that for long.

Of course if you're not using the full rating of the inverter may be OK.
But I'd except a 300w type to come with a direct battery connection lead
too.

--
*When did my wild oats turn to prunes and all bran?

Dave Plowman London SW
To e-mail, change noise into sound.

Modified sine wave is a 2 step square wave that some things dont like.

Decent inverters can output a true sine wave but cost goes up a bit

http://www.ebay.co.uk/itm/Victron-Ph...-/301488987580

ahh, searching on pure sine brings up the cheaper end of the market, trust me 100A+ needs thicker input copper

http://www.ebay.co.uk/itm/1500W-3000...-/172203971535

On 20/08/16 13:17, Adam Aglionby wrote:
ahh, searching on pure sine brings up the cheaper end of the market, trust me 100A+ needs thicker input copper


No, it doesn't. Depends on how long and how much drop is tolerable

http://www.ebay.co.uk/itm/1500W-3000...-/172203971535



--
If you tell a lie big enough and keep repeating it, people will
eventually come to believe it. The lie can be maintained only for such
time as the State can shield the people from the political, economic
and/or military consequences of the lie. It thus becomes vitally
important for the State to use all of its powers to repress dissent, for
the truth is the mortal enemy of the lie, and thus by extension, the
truth is the greatest enemy of the State.

Joseph Goebbels

On Saturday, 20 August 2016 09:31:28 UTC+1, Martin Brown wrote:
On 20/08/2016 01:28, Weatherlawyer wrote:
1500w 12v DC to 240v AC at just under 22 quid; is it too good to be true?

Work of pure fiction. Chinese watts must be 10x SI watts.

http://www.ebay.co.uk/itm/New-1500W-...0V-AC-USB-UK-/

See note 1. It is guaranteed to work for perhaps at most 10 minutes from
new and will promptly expire if you try to use at "rated" power.

Reasonable ones rated ~300W can be had for about that sort of price and
that is a more realistic current draw from a car battery/cig lighter.

Try Amazon for ones that might actually work at a decent price.

Ah yes the Amazon experience so much more pleasant to work from them. But at least their slaves aren't well fed!

On Saturday, 20 August 2016 13:17:06 UTC+1, Adam Aglionby wrote:
ahh, searching on pure sine brings up the cheaper end of the market, trust me 100A+ needs thicker input copper

http://www.ebay.co.uk/itm/1500W-3000...-/172203971535

In practice it's how much heat the insulation will stand is the limiting factor.
Also ambient tempersture and cooling.

The cheapest pure sine wave one I can find from a reputable source is

https://www.tlc-direct.co.uk/Products/SK652100.html

300w for 60 squid

On Saturday, August 20, 2016 at 1:27:04 PM UTC+1, The Natural Philosopher wrote:
On 20/08/16 13:17, Adam Aglionby wrote:
ahh, searching on pure sine brings up the cheaper end of the market, trust me 100A+ needs thicker input copper


No, it doesn't. Depends on how long and how much drop is tolerable

TBH the supplied strap looks more like a fuse for the item than a supply cable.

Experience tells me that by the time the insulation is fuming off , voltage drop and T copper is already a problem ;-)



http://www.ebay.co.uk/itm/1500W-3000...-/172203971535



--
If you tell a lie big enough and keep repeating it, people will
eventually come to believe it. The lie can be maintained only for such
time as the State can shield the people from the political, economic
and/or military consequences of the lie. It thus becomes vitally
important for the State to use all of its powers to repress dissent, for
the truth is the mortal enemy of the lie, and thus by extension, the
truth is the greatest enemy of the State.

Joseph Goebbels