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Inverter Selection for Your Boat
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Inverter Selection for Your Boat
For a long time , I have been a 12 volt man on board our trawler, the Patricia Ann. Twelve volt DC systems were simple, not dangerous and worked well for their intended purpose. But after a five-day cruise aboard the boat we were on, and we had to keep powering up the generator in order to supply power to the 115-volt AC freezer in order to maintain temperature I began to think about different options. We spent over ninety hours of power on the generator in just five days. It's time to get the oil to be changed! It was then that I began to consider installing an inverter for the freezer. What exactly is an inverter anyway? Inverters are a kind of electronic device that converts battery direct current (dc) power into alternating current (ac). There are so many choices available what should I consider before I make a decision? When it comes to picking a power inverter for your boat, the options aren't easy to navigate. With the many options on the market, it is important to know what the distinctions are so that you make the best selection for your specific boat's needs. Your main concern is the wattage. Inverters can mua bán biến tần be sized according to the amount of power they can handle. Take note of the things you'll be running and the number of amps each requires. You should also think about how many of items you'll be running at the same time to decide which size of inverter would be best for your requirements. You don't want to overload your inverter with many high-wattage devices simultaneously. You will most likely notice that the cost of inverters increase with the quantity of wattage. You can find the wattage by studying the manufacturer's sticker on the appliance. If just the amps are indicated, make use of the formula (amps + 115 Volts= wattage) to convert to Watts. The next issue is whether you should purchase a true sine wave inverter or a modified sine inverter. A true sine inverter is one that delivers a nice current much like the one you get from a power company. A modified sine inverter is somewhat less pure. The modified sine inverter is designed to offer a lower cost alternative over the traditional sine inverter. You'll discover that, while the original sine inverter provides the most efficient electrical flow, it also will be the costliest. A modified sine 1800 watt inverter costs around $350.00. Although it is true that the inverter modified by sine may be more economical, it does have its individual issues. For many smaller devices, like hair dryers and refrigerators the modified sine inverter is likely to suffice. However, with some appliances like plasma televisions you might notice a deficiency of accuracy. In this situation, a sine inverter is a better solution to ensure that you get higher quality output. It is also important to keep in mind that the modified sine inverter isn't able to be upgraded into a true sine inverter. You must make sure that you buy the right inverter for your boat's requirements at the beginning. It is recommended to ask about overload shut-off switches or indicators on your inverter just in case you over load the inverter. the majority of inverters come with these as standard equipment. You might also verify if the inverter is equipped with thermal and short circuit shut downs to put a stop to these types of emergencies and other emergencies. In addition, some inverters come with built-in shutdown options in case the battery's storage levels reach a specific low point. I decided to install an Xantrex 1800 modified sine inverter, rated at 1800 watts, capable of 1000 watts of continuous load. This inverter contains a built-in transfer switch that switches to shore power and inverter power. The last issue to consider is the battery bank on the vessel you are going to be drawing from. Your inverter is likely to draw from this bank and you have to know the time the inverter is able to work before recharges need to happen. Examine your battery to determine the amp-hours for them. Amp-hours correspond to amps, time hours. A battery bank consisting of 2 8D batteries would have about 580 amp hours. So, I know that my freezer pulls 2 amps. It runs for 20 minutes per hour which equals approximately 7 hours in a 24 hour period. The total amp-hours that the freezer consumes in day are 14. So in essence we could use the inverter to operate for 41 days without recharge, but should we? It's not recommended to charge batteries all the way all the way to zero. The lifespan of batteries is directly tied to the extent to which the battery is cycled every time. If a battery for a boat is discharged at 50% every day, it will last around twice as long when it is cycled to an 80% discharge every day. If cycled no more than ten percent of discharge, it'll last about five times the time as one cycled at fifty percent. It doesn't mean that it is impossible to cycle to 80% at times. You just need to have some idea of the loads. It is important to consider an average of 50% to ensure the best storage vs price factor. In addition, there is an upper limit - the battery that is continuously cycled 5% or less will by and large not last as long as one cycling down 10%. This is because during particularly low cycles, lead dioxide tends to develop on the positive plates. I like to cycle my batteries down 20% before recharging. Monitoring your battery is possible, however I would prefer to use the Trimetric 2025 monitoring tool. This electronic gadget permits me to monitor the batteries and the hours used with precision. With a little careful planning, an inverter can make a cruise more enjoyable. After you select the right inverter for your vessel, make sure to get it properly installed. If you're unsure about working with electrical power you should opt to get a professional to handle the installation for you. You can then be on your way knowing that you've got the tools to run your boat with enough power. We had another trip of four days during the New Year holiday with our new inverter and I'm happy to say that we only used our generator six hours over the course of four days. Life is good.

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