For a long time I have been a 12 volt guy on board our trawler, the Patricia Ann. Twelve volt DC systems served their purposes and were constantly simple, not dangerous. But subsequent to a recent five-day cruise where we needed to constantly power up the generator to supply electricity to the 115 volt ac deep freezer to preserve temperatures, I started to think about some other alternatives. We put over ninety hours on the genset in just 5 days; time!
Therefore I began to consider adding an inverter to run the freezer. But what is an inverter anyhow? An inverter is an electrical device that turns battery direct current (dc) electricity to alternating current (ac). However, there are so many alternatives from which to choose, where do I begin? In regards to picking a power inverter for your own yacht, the alternatives can be perplexing. With lots of options in the marketplace, it is vital to comprehend what the variations are so you can make the finest choice on your special boat use.
Your main issue will be wattage. The wattage they can handle sizes inverters. Consider what things you will run and the number of amps each item needs. You’ll have to also think about the number of them you’ll run at once to discover what size inverter would function as the most suitable on your requirements. You don’t want to overload your inverter by turning on many high wattage things at exactly the same time. You’ll most likely notice that the cost of inverters increases with the amount of wattage. You’ll find the wattage by taking a look at the sticker on the appliance of the maker. If just the amps are shown, use the formula (amps x 115 volts= wattage) to convert to watts.
The following issue will be whether you should buy a modified sine inverter or an actual sine wave inverter. A true sine inverter is one that will give you a fine current considerably like you get from your power company. A modified sine inverter is to some extent less pure. The modified sine inverter was made as a more frugal choice to the sine inverter that was accurate. You will find that while the pure sine inverter provides the greatest electric flow, it also will function as the most costly.
The modified sine inverter has its individual problems, although it is affordable. For a good variety of devices that are smaller, like a refrigerator or hair dryer, there is a modified sine inverter going to be sufficient. Yet, with some appliances you might become aware of a deficiency of precision. In this case an actual sine inverter might be a much better alternative to make sure that you could have a better quality output. It is additionally vital to keep in mind that a modified sine inverter can not be updated to a true sine inverter. You may need to be sure you happen to be buying the right inverter for the demands of your boat in the beginning.
It truly is wise to inquire about overload shut switches or indicators off on your inverter just in case the inverter is overloaded by you; many inverters supplied by www.apxteck.com include them as regular equipment. Moreover, a couple inverters contain built-in if the battery storage levels reach a special area that is low shut down features.
I elected to install a Xantrex 1800 watt modified sine inverter capable of 1000 watts of constant load. This inverter comprises a built in transfer switch that transports between inverter and coast power.
The last concern is the battery bank on board your yacht you are going to be drawing from. Your inverter is going to be pulling from this battery bank and you need to be able to ascertain how long the inverter can function before a recharge must happen. Look at your battery to find the amp-hours them. Amp hours represent amps time hours. A battery bank of 2 8D batteries can have about 580 amp hours.
Therefore I understand that my deep freezer pulls runs and 2 amps which equals about 7 hours per 24 hours. So the total amp-hours the deep freezer will use per 24 hours are 14. So in essence the inverter for about 41 days could operate with no recharge, but should we? It is bad to run a battery all the way down to zero. Battery life is directly related to how deep the battery is cycled every time. If cycled than ten percent of discharge, it’s going to continue around 5 times as long as one cycled to fifty percent. This doesn’t mean you can not go to 80% sometimes. It is simply that you would need to have some idea of the loads.
You need to plan on the average discharge of roughly 50% to find the finest storage vs cost factor. This happens because at notably cycles that are shallow, the lead dioxide tends to develop on the positive plates. I prefer to cycle my batteries down 20% before recharging. I prefer to use a Trimetric 2025 tracking apparatus although tracking your batteries can be estimated. This electronic gadget allows me to track the battery banks amp-hours use exactly.
With a little careful planning, a boat trip a more agreeable occasion can be made by an inverter. Make sure to get the inverter that is best for your yacht properly installed, after you select it. If you are not certain about working with electrical power, it will be best to have a specialist do the work for you. You then can be underway way knowing which you have what you have to keep your boat running on enough power.