Archive for the ‘Power’ Category

How Charged are my Motorhome/Caravan Batteries?

Thursday, March 25th, 2010

No matter whether you are a “The glass is half full” kind of person or a “The glass is half empty” type, you will agree that one advantage of drinking from a glass is that you can see just how much of the liquid remains. Sadly our motorhome and caravan batteries are not like that […]

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Why is my solar not working properly?

Thursday, March 11th, 2010

This is a question we get asked often. Once fellow travellers discover that I have an electrical background and training, I am regularly asked to examine their solar installation to determine why it is not working. Here is a list of the top 5 causes for Solar that does not perform on caravans and motorhomes […]

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Low Cost Inverters for sale on eBay – a good investment?

Wednesday, March 3rd, 2010

My brother-in-law recently purchased a pure sine wave inverter via eBay. In the supplied information the inverter looked like the perfect replacement for his modified sine wave “Xantrex” brand inverter (that has performed flawlessly for a number of years). The inverter purchased is currently selling (on ebay) for $579 plus $135 shipping When the inverter […]

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Inverters for Caravans and Motorhomes

Saturday, October 3rd, 2009

  Almost every motorhome and many caravans use an inverter. These clever electronic devices take the low voltage direct current (DC) power from our batteries and convert it to the same high voltage alternating current (AC) that our household sockets deliver. This allows us to have 240 volt mains power with us no matter how […]

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Charging from vehicle alternators

Monday, September 28th, 2009

 Every vehicle has an alternator, we know that it is responsible for keeping the starting battery from going flat.  But can we use the alternator to charger our motorhome house batteries too?  What is the best way to do this?   Before we look at the options, let’s look at the issues: Crank batteries differ […]

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What is a solar regulator and what is its job?

Wednesday, September 23rd, 2009

Most people who have anything to do with solar power know that a solar regulator is necessary. Not too many of these people understand the exact function of a solar regulator or how it does what it does. For the purpose of this discussion and unless I state otherwise, I will be talking about the […]

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Why are my motorhome / caravan batteries going flat?

Wednesday, August 12th, 2009

As we travel, we often meet people who are in caravans and mobile homes. It always surprises me how many people continue to have issues with the electrical systems. In most cases the conversation starts with “why does my fridge cut-out during the night” or perhaps “my caravan lights go very dim by about 10pm”. […]

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How Many Solar Panels Do I need?

Tuesday, August 11th, 2009

We often get asked “how many solar panels do I need?”. The person asking the question normally expects me to look at the size of their caravan/motorhome then immediately offer a valid technical opinion. To offer any kind of meaningful answer a number of factors must be known:  Average daily power consumption (normally measured in […]

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Selecting Solar Panels for a Motorhome or Caravan

Sunday, August 2nd, 2009

For someone wanting to equip their motorhome or caravan with solar panels to collect free power from the sun, there is an almost endless list of technical terms rumours and myths to wade through. Terms like polycrystalline, amorphous and temperature co-efficient to name just a few. Sales pitch aside, how is the average person supposed to […]

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Getting the electrics right

Sunday, August 2nd, 2009

Setting up a motorhome electrical system for long term travel  Having now lived in our motorhome for over 6 years, and during that time almost constantly tweaked and tuned the electrical system, we feel that we have got it pretty much right.  So what makes a good electrical system in a motorhome?   The answer […]

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Wind Power for travellers

Wednesday, July 29th, 2009

For many years there were a number of issues with most wind turbine systems that prevented them from being seriously considered by the average traveller.       The turbines we have seen did nothing to make me want one … they were: Large and heavy They required gale forced winds to have them produce […]

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Selecting House Batteries for Your Motorhome

Friday, February 27th, 2009

Billions of dollars are now being spent annually on alternative energy research. Some of us have been living almost entirely on renewable energy for years. However, all this research is making our lives a little easier. New and improved products are emerging thick and fast, fuelled by the now much larger market created by the […]

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Monitor your batteries for increased life

Friday, December 5th, 2008

Most caravanners and motorhomers rely on battery power to some degree or other. If you have been listening to the experts, you will know that the best way to ensure a long and productive life for your expensive deep cycle batteries is to pay close attention to how the batteries are charged and to what […]

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