new idea

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ma...@weathersystemsonline.co.uk

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Nov 5, 2008, 3:12:30 PM11/5/08
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I was wondering if it was possible to use a inverter connected to a
battery that feeds power to a battery charger via an controller that
in turn tops up the battery thereby if my calculations are right, the
battery never run down and yet get about 150w spare capacity from an
300w Inverter (FREE ELECTRICITY)?

Can this be possible....

mike

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Nov 6, 2008, 10:34:17 PM11/6/08
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In theory this could be possible, but the inverter demands a high
ampage and will always use more power consumption than it provides,
that's a fact of life.

The real test would be when the 150w is being used as this is when the
ampage rises in the inverter, the battery would not keep up with the
rate of charge necessary.


On 5 Nov, 20:12, "m...@weathersystemsonline.co.uk"

ma...@weathersystemsonline.co.uk

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Nov 8, 2008, 4:31:36 AM11/8/08
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I should have mentioned that if 24v system was used then this might
just work.
I know the the inverter is around 90% efficient, but the main idea was
to support a low wattage solar panel until money would allow the
purchase of much larger system. Another idea I had was to help
charge up the batteries (from very overcast days) to make best use of
Economy7 and charge the batteries over night from the mains.

John

mike

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Nov 8, 2008, 11:17:46 PM11/8/08
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Certainly that is possible, I have a very basic system at home in the
south of England consisting of a 40w solar panel, charge controller,
two 110 amp leisure batteries and two inverters. One inverter is a
pure sine wave (600w) and the other is a modified sine wave (1200w)
they are basically for emergency power in case of a power failure, but
I do have some 12v lights run into the house and garage which are in
general use. The pure sine wave inverter would run the TV and
computers if necessary. This system copes well over two to three days
as long as the inverters aren't used constantly and sparingly. I do
intend on adding another solar panel a little later for the darkest
and shortest days. Going back to your set up I would be very
interested in hearing how you get on. Good luck for now.



On 8 Nov, 09:31, "m...@weathersystemsonline.co.uk"
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