I also have two 1500 BTU ACs, but I can’t seem to get any better than a 20 degree drop. Start up wattage is much higher and gets close to 3000 watts. The amount of watts you need to run your RV’s AC unit will depend on how many BTUs the air conditioner produces. The more deeply the battery is discharged on each cycle, the shorter the battery life will remain. A commercial LifePo4 Solution from BattleBorn or another Manufacturer that is dictated in this Article would have cost me $9000. Most travel trailers, either bumper-pull or fifth-wheel models, don’t offer that much cargo carrying capacity. Conclusion. To run your RV Ac unit off a battery you would need an inverter to convert from DC to AC power. Your battery is also going to have to be able to handle the load without being depleted. A battery bank designed to power an average American household for three days would need to supply 90 kilowatt-hours of energy. Of course, depending on how many electrical items you power off your battery, your battery may not last the night. For 1.5-ton air conditioner required as least 4 batteries of 150Ah. Echoing Dana’s question, is it correct to just halve your numbers to run one 15000btu ac for eight hours? The fact that we are all able to access almost unlimited amounts of electricity 24/7 is a beautiful part of our modern electricity grid. Jack Steve I’m running two 1.25 amp underwater lights I’m trying to power them off of 18650 batteries each battery has 2000mah how many cells will I need to run for at least 2 hrs Reply • Ratted article 5 • June 14, 2020 at 10:24 am I also have a RV evaporative cooler that uses water for dry climates. Thus, in order to run all two or three air conditioning units, you will need a larger power inverter, perhaps as high as 7,000 watts. Battery. In a 12V system , that is 100 Amps. In other words, a 5 amp AC appliance will draw roughly 50 amps from your 12 volt battery bank. These provide all the power necessary to boondock comfortably for weeks at a time. This means you will need at least a 4,000 watt DC-to-AC power inverter, to convert your battery power to usable AC electricity. The average size alternator used in a vehicles' DC charging system is about 100 AMPS DC. You can get solar panels to handle this amount of wattage, but the inverter would be impractical and not be of any help. From my previous investigation , I found that a AA battery has about 10,000 Joules of stored energy. Can you run air conditioning on solar power? Lithium Ion-Phosphate batteries can be drawn down to zero state of charge without suffering damage. There are a lot of variables that can affect how long your battery power might run the AC, which means any answer we give has to be qualified with a whole bunch of modifiers. Most boondockers don’t camp in places where they’ll need air conditioning. To support 150 amp hours of battery power, 300 amp hours of battery capacity is required. These batteries can run you about $1200. Say the air conditioner draws an average of 1200W per hour. Battery Efficiency. I run 2 1500 BTU AC with 10 Lithium ion Batteries and 1000 watts of Solar panels. My System cost: $14,000. Batteries do come in handy and can power your Ac if you have the right ones and the right number of batteries. These are usually larger fifth-wheel trailers, Class A motorhomes, and higher end Class B vans. Lithium technology is not a new thing. That means you need to bring an alternative power source with you if you want to run the features included in your RV. For a lead-acid battery, the efficiency is 80%, for lithium, this is 99%. In order to get 8 hours of running an air conditioner on battery power, you will need a lot of batteries. So now we know how to figure out how powerful the inverter is on a power station. These things can be run from battery using a smaller power inverter of 500 to 1,000 watts. Boondocking on Bureau of Reclamation Lands. If you had three 100 AH (amp hour) Lithium Ion-Phosphate batteries, along with a 7,000 watt power inverter, you could run two 15,000 BTU air conditioning units for about 1 hour. Running an RV air conditioner with batteries is very possible but it takes a lot of battery power. If you are using a 15,000 BTU producing air conditioner that requires about 1500 watts to run it, then the two lithium batteries can keep the air conditioner running for 90 minutes before needing recharging. Most devices run on either 50Hz or 60Hz. They are lighter, more efficient, and longer lasting than lead acid batteries. Is it Illegal to Live in a Tent in Your Backyard? 1584 watts / 12 volts = 132 DC amps. A lot of the reason for it is that manufacturing practices have brought the price down considerably, and battery management systems that keep lithium safe are becoming more and more prevalent and accessible. But while we can’t give an absolute answer, we can answer for any given day – and that’s what we do in this video, which we made for WinnebaGoLife’s blog . This is what I’m doing and it only requires basic DIY knowledge where you only need to be able to connect some wires together and do basic electrical work. Most RVs do not come equipped with an inverter of that size. © 2019-2020 Too Much Tina. 0. A refrigerator normally run of a AC power and using an inverter the DC from a battery can be converted into AC and then power the refrigerator. Abhisek Behera12. Example: How many DC amps will a Vanner 24 volt inverter require to operate three 500 watt quartz lights, or a 1500 watt electric heater? Read our other article, “How Many Solar Panels Do I Need for Boondocking?”. The average AC unit uses a… 24 Volt DC Systems. To read more about using a battery to power your RV Ac unit, just continue to read our article. (Sewer, Mold). How Many Solar Panels Do I Need to Run My RV AC? Some people have gone to Lithium batteries that bring that power but they are not inexpensive. That test was done at full power and trying to cool a hot 86 degree F RV down to about 66 degrees F. Your results will differ as you may be using a different sized air conditioner that producers fewer BTUs. This is what generators are for. Otherwise a lot of devices will run on either. That also doesn’t count the 1,500 to 2,000 watts of solar panels on your roof, to replenish those batteries while running your air conditioning. A typical 12 volt flooded-cell battery, delivering 100 AH, weighs about 50 pounds. You’d think AC manufacturers would just build that in. Usually the Desert cools down at night so I will just uses the swamp cooler. Btw, thanks so much for your breakdown, figuring out the solar panel system is like Mandarin to me. Tesla batteries can deliver more power at lower costs. On top of that, it would have to be a sunny day in the middle of summer, when you get the best overhead sunshine. They are also capable of withstanding repeated drains of power and recharging. It’s been around for quite some time, but it’s becoming more and more prominent in larger power applications. That doesn’t count the expense of buying a 7,000+ watt power inverter, which can cost between $1,200.00 to $2,000.00. Easily done on a 5vr unit garage door. This ability makes them perfect to use when you cannot find an electrical outlet to plug your RV into. Wash your clothes at any time. Some batteries can hold lots of electrical power. A 13,500 BTU air conditioner will need roughly 1200 to 1300 watts just to run it. 66 Watts per hour * 24 hours = 1584 watts . But, they will also require installing a 24 volt system, along with a converter to reduce the final output to 12 volts. Now we need to find out how many watts the air conditioner uses. Those Indian summers can be extreme some years. Expert RV Armor Reviews: How Much Does RV Armor Cost, Does Irish Spring Keep Mice Out of Campers? Not all campgrounds that allow RVs have electrical hook ups. You’d have to buy a toy hauler to get that much capacity, let alone the weight of your other stuff (clothes, appliances, tools, electronics, etc.). Terry, getting a 40 to 50 degree temperature drop inside your rig is pretty darn good. That’s a huge difference. Yes, you can. Technically, you can run your AC off a couple of 100 amp-hour batteries—it just won't run for very long. The key to running your AC unit off of batteries is that the batteries will need plenty of power. How Many Watts does it Take to Run an RV air Conditioner? Running a 120V AC Xmas lights off batteries. You can even leave your AC on for the entire summer, no questions asked. Solar power, combined with a decent sized battery bank, and a small to medium sized power inverter, is still affordable for RVers who spend most of their time boondocking. By comparison, you will need about 8 lithium batteries at 100 AH each, weighing 240 pounds total. F350 vs F450: The difference Between Ford F350 and F450. How Much Battery Power For Boondocking Will I Need? You can see how this was calculated below. An inverter is a little device that converts electricity from DC to AC (or less technically, from battery-type to wall-type). A power inverter converts a vehicle’s battery from 12-volt direct current to 110 volts alternating current (AC). How many batteries do I need for my inverter? The Electrical Basics An inverter is part of a 12-volt DC system. Yes, you can. Of course, if you have 2 then you may need to double the wattage. We want to travel west but I suffer from heat related issues. Sure, generators can be expensive themselves, along with being expensive to run for long hours during the day. When you include the costs of additional parts (copper wire, battery monitor, 2-way or 3-way transfer switch, solar panel mounting hardware, etc.) A Goal Zero Yeti 1000 would run a small portable 800W AC for about an hour. It is possible, however to run air conditioning on batteries. Only the higher-end RVs come with equipped with a power inverter. This conversion is not necessary for DC components and fixtures such … Some batteries can hold lots of electrical power. But if you are running into a device that will only run on one then you just need to stick with a standard and go with it. In general, you should plan on at least a 700 amp-hour battery bank if you plan to run an AC with solar. But, if you want to consume a lot of electricity while boondocking, it is still by far the cheaper alternative. Tip: Engine start batteries should not be discharged below 90% charged state, and marine deep cycle batteries should not be discharged below 50% charged state. If you really want to go cheap and your not mobile, you can buy 1 or 2 window units that are 5k BTUs – 10k BTUs and will easily keep the RV cool in extreme heat and run off your standard boondocking battery bank. The DC battery and alternator must supply the DC AMPS. ... 15bulbs 6watt each,2freezers and ac pump.how many watt Parnell I need and how many batteries for ,6hrs. If you are using a 15,000 BTU producing air conditioner that requires about 1500 watts to run it, then the two lithium batteries can keep the air conditioner running for 90 minutes before needing recharging. What if you wanted to run your house on AA Cell batteries? A 3000 watt inverter can only deliver 1,200 Watts @ 120 VAC using your vehicles existing DC charging system. What AC units are you running? 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