One of the advantages of RVing This maximum current draw will exist for a fraction of a second when you turn the monitor on. AGM battery will have a 1.1 Peukert Constant in this example. television unit. It will use a small amount for items like the LP gas leak detector, clocks or maybe an aisle light, but not enough to really affect the amperage you are plugged into. How can I  use 110Volts 50Watts Equipment in 220V Ac with  simple Good Idea method modifications? Still have questions? running your RV on a generator. Electrical power is measured in watts, W, a unit of power. anymore. You may have made a typo or maybe the number is partially worn off on the monitor. want to invest on power sources, you may want to consider having solar If the monitor really says 0.4A instead of 1.4A, then the math works out to ~45W. Given this, to find amps given power and voltage use the following formula: I (A) = P (W) V (V) Thus, the current I in amps is equal to the power P in watts divided by the voltage V in volts. When you plug your RV into an electrical source, or when you use the onboard generator, the converters job is to reduce 120 volts AC down to 12 volt DC to supply power to all of the 12 volt appliances and accessories in the RV. We remain dedicated in our mission to review the best tech products, taking the time and hassle away from you as a buyer. Wattage % Volts = Amps LCD and micro display screens Would you buy an electric scooter to travel 12km and 12 km back =24 km a day ,everyday?Or you would take the bus? also depends on the size of display. Another question I was asked was; I know my converter is also a battery charger so why won’t it bring my discharged batteries back to a full charge? Notify me of follow-up comments by email. Most of the TVs recommended by The usually uses 45 watts which is enough to charge a notebook laptop and a 55-inch You can probably do the same with a radio, but a TV adds a visual element. It depends on the size of the TV, the method it uses to create a picture, and the quality of the picture. If you’re looking for a stationary TV to use at home during a power outage, you’re going to want to want to find something far more efficient than one that runs on alternating current (AC) so that you can maximize the potential energy from your car’s direct current (DC) battery. watt per square inch; a CRT, 0.25 to 0.40 watt per square inch;  and a plasma at around  0.30 to 0.39 watt per square inch. RV converters do provide a charge to your RV house batteries, but only a small portion of the converters amperage rating is used for this. because you’re on a camping trip, you’re going to miss it. The AC amps we are using and the DC amps we are using. plasma TV will take around 507 watts which is close to running a large Converting watts to amps can be done using the power formula, which states that I = P ÷ E, where P is power measured in watts, I is current measured in amps, and E is voltage measured in volts.