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Letâs take a look at AC energy requirements and typical solar production to see if solar panels can really run air conditioners in each setup. Interestingly, my power bills tend to be significantly higher in the winter (when I'm running the electric heaters) than in the summer (when I'm running the AC). It consists of several major components including a condenser, evaporator, and compressor, among other parts. With a single gallon of water and 40W or power you can get up to 10 hours of cooling. This might be a silly question but I was wondering if a car AC unit be run off entirely on battery or alternator? Other companies use similar strategies, BMW is just the first I could find that offered some explanation of why they switched to electric AC. Electric AC has another advantage. An easier approach would be to drop the A/C clutch out when you tromp on the accelerator. There are many reasons to get your air conditioning recharged besides the most obvious one being to keep you and your passengers cool on journeys in hot weather (though we might add that leaving a box of lollies in a non-air conditioned car for too long can be very upsetting for kids and grown-ups alike). An electric AC is unnoticable. This creates a heat flow where one side is incredible hot and the conversely the other side is cold. An inverter changes the battery's DC output into AC power to run your AC appliances (including your air conditioning unit). An electric car does things differently because there is no engine, and so delivering power to the AC and just about everything else is determined by the amount of stored battery energy. Now I wonder if I had shut off the car (to save gas), how long would the battery last if I used the AC. On the cold side copper or aluminum would work, but make sure the 2 sides don't touch. If you use the vehicle battery then the charge come from the alternator and therefore the engine - btw the alternator can take approx 10bhp or more if producing full charge. At idle, it would provide less than 50 amps. Yes, this is possible. Not like an electric car has an accessory belt... @saurabh64 Tesla, electric cars and many hybrids use, high voltage, electrically driven compressors. battery powered air conditioner* Powered by its interchangeable power base. Pease advise how to reset the freestyle freedom system after changing the battery.? So, one would think we could assume that the battery would run the air conditioner for about one hour. I'm pretty sure you can't run the air conditioner all night without someone in the car. In a 12V system , that is 100 Amps. http://www.amazon.com/TEC1-12706-Thermoelectric-Peltier-Cooler-Volt/dp/B002UQQ3Q2. However, the battery pack will not be able to sustain that operation for very long since the drain is substantial. On smaller engines, you can feel when an engine-driven compressor engages. Currently, you take kinetic energy from the engine, and transfer it to kinetic energy at the compressor. I can hook up 2 alternators to my car but have seen 10 to 15 alternators hooked up to the subwoofer competition trucks. An optional cigar lighter connector is available for use on vehicles with a permanently live cigar lighter or auxiliary 12V socket. (How do I know this, lol) Not a perfect solution, but much cheaper and easier than trying to compress the AC coolant electrically. If you wanted to use battery power, you would need very large batteries and a more powerful charging system. NYBo. The fans and pump (if you go that way) will use very little compared to this. A car alternator recharges the battery and powers certain electrical systems like lights, radio, air-conditioning, and automatic windows. In a 12V system, that is 100 Amps. Letâs do the math. The aerodynamics in the below example are also a bit dubious. I was just curious as today I was stopped on the highway for an hour. 54 sections 18650 lithium battery composition Normal use for about 5 hours, 3.5 hours at full load. You do not have to leave your car running for IcyBreeze to operate. the only other way I can ⦠The LifeSmart cooler is a great option for you if you think you might be near electric hookup for some of your camping trip. Cars have an A/C compressor that is mechanically driven by the engine because this is the easiest way to get the job done in a typical consumer car. It made the battery so weak that the starter motor would turn but not enough to crank the engine. 11 Best Battery ⦠I asked on another forum and was told to expect only 15% battery use. Hi, Guest ! Determining Cycles Per Hour . Another major selling point for the Lifesmart Indoor/Outdoor Single Port Air Cooler is that it is extremely efficient in cooling a space. So you could mount these either inside your door, or perhaps behind the backseat. Ever tried running a 500 kW generator? For practical purposes, it takes 11 amps of DC power to successfully run a 1-amp AC powered device. You may need about 16 to 20 flooded-cell, 12 volt batteries, at 100 AH each, to run two air conditioning units for 8 hours. ⦠They are essentially a plate of ceramic postively charged, and one negatively charged. If you bolted an electric compressor onto the car you would have to find a way to switch between the mechanical and the electric compressor, and that no one makes. The primary design is for those that have to leave their cars in the hot sun while away. Our air conditioner uses 550 watts of electricity. The good news is all of this can be done with 12v-15v. Also, Toyota hybrids have an electric AC and I suspect it runs on the high-voltage 1-2 kWh battery and not on the low-voltage 12V system. A typical 12 volt flooded-cell battery, delivering 100 AH, weighs about 50 pounds. @Hobbes I agree with you about the inefficiency, but the person didn't say it had to be efficient. That test was done at full power and trying to cool a hot 86 degree F RV down to about 66 degrees F. I would like to travel in my car but because of health issues I would need to be able to sleep in my car also, or at least rest for long periods. What could be wrong? I'm pretty sure you can't run the air conditioner all night without someone in the car. Then the heat would get exhausted that way. The A/C would run a bit more after you do that, to keep the cabin air temperature down. 17 Aug 2005. I can't give you numbers or calculations without some work, but I can tell you than energy is never free. I have 4 trojan 6v batteries in series to produce 24vdc. Efficient Cooling for Long Hours. 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. They are: Keep the car maintained and service on a regular basis. An A/C compressor actually takes a huge amount of energy to operate. A generator will ⦠I have read about the extra battery to power computer, etc. 13 thoughts on â Best 12 Volt Battery Powered Air Conditioners for Camping or Traveling â Montie June 18, 2020. http://www.heatsink-guide.com/peltier.htm, here is an example: Charging of inverter for air conditioners. the AC won't cool without the car running so it serves no porpoise to run the AC. If your alternator has a bad diode , your battery can drain. In fact you will need many car batteries to keep this array powered for any length of time. Another reason that I could think of is for those people who might want to take a short nap and want to use AC without the car running. Standard (without smart battery) Plus (including smart battery) I have seen vehicles with multiple alternators, such as BASS competitions. Technically, you can run your AC off a couple of 100 amp-hour batteriesâit just won't run for very long. @MasonWheeler, ok, yea, electric heat is the biggest power user, but in my mind I lump that in with the HVAC system. So if you have a powerful air conditioner, youâll need to make sure your solar panel system can ⦠Most batteries' A.H. capacity is stated for the 20-hour rate of discharge. 54 sections 18650 lithium battery composition Normal use for about 5 hours, 3.5 hours at full load. I also have a 5000 btu air conditioner which attracts 530 watts. But, we have to consider several things first: Truly hassle free from in-house wall plug. The possibility of a second battery with a split charge system still requires the energy to come from the alternator and engine. The bad news is even 1 peltier element requires 7 amps at 12v. Each conversion has losses. I have no idea how many you would need, but give these are 1.5 inches many would be needed. Either way you would need to transfer the resulting heat outside of the cabin. You will need to judge your oil changes differently though. The high voltage part of that makes a lot of sense. The air conditioner, when itâs really cranking in the desert, pulls about 12 amps at 120 volts. In the case of Tesla EVs, for example, the AC compressor is located at the front of the car and draws power from the Energy Storage System, or ESS, in the back. Finally to a car battery, hopefully a 2nd car battery. Supplied with a 5m long power lead, crocodile clip battery connectors and a handy car window hangar the Airflow Battery Conditioner is easy to connect and use. By clicking âPost Your Answerâ, you agree to our terms of service, privacy policy and cookie policy, 2020 Stack Exchange, Inc. user contributions under cc by-sa. AC for grid-connected homes 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. Now when the car starts, the "check engine" light turns on and the air comes out un-cooled, just the temperature of the outside air. Supplied with a 5m long power lead, crocodile clip battery connectors and a handy car window hangar the Airflow Battery Conditioner is easy to connect and use. Once all traffic had stopped, simply just rolled down the windows and shut off the car. And they only have the electrical compressor, not both. I want a mini a/c unit that I can use in the back of my van. Install a second radiator under the hood and 12v pump and fan. Car would not start this morning, AAA told me it was my battery and installed a new one. Join Yahoo Answers and get 100 points today. That hiccup in the drivetrain can get annoying. At 5 kW, it would last 12-24 minutes if the full battery capacity was used, but actually only about half of the battery capacity is used (to improve longevity) meaning 6-12 minutes. So although I donât see how the air conditioner could drain the battery, other electrical accessories can, in specific circumstances. As they're designed for it, I would bet that they have an electric compressor designed for this. October 1, 2016 - If your car's air-conditioning system blows only warm air on hot days, it's probably because it is low on refrigerant. If you don't mind an inferno in your trunk, behind the back seat. 1 Like. Air conditioners typically use between 1.2kw â 2.5kw of power, and a typical solar panel system has an energy output of 2kw â 4kw. It runs off of a rechargeable battery that is built into the unit. I will be using my cpap machine and will have the Air Conditioner at about 75. Even with a spare battery, this would not work. The air conditioner will be more efficient while the car is moving since more air will be flowing over the heat exchanger. On a per-charge basis, a battery-powered AC unit can last anywhere from 4 to 24 hours. Just easier when it's designed for it. For the life expectancy of the units, they can last for years. Car mechanics, my car battery is 650 CCA. Then you will have to connect those wire bundles to even thicker wires and so on. That said, I don't have any idea how MUCH ⦠Solution, turn the ac off before I turn off the car, to let the battery get back to 12 volts so I can crank my engine over the next day. If your carâs air conditioner isnât blowing cold air, the first thing you should look for are signs of leaking ⦠However, if you purchased a bunch, say 20 you could have a setup where you control how cool it gets by turning some off. Are new coronavirus strains cause for concern? You could always do it with a window air conditioner and a huge inverter, but the efficiency would be pretty bad I bet. My van has a/c and can be turned on with engine running, but when stationary the a/c hose gets so hot that the ends melt. To run it from an electric motor, you would need to do kinetic at the engine, to electric at the alternator, then back to kinetic at the motor for the compressor. If you were mechanically inclined you could also use water cooling. Get your answers by asking now. Sure, just find a space to add an electric motor in the engine compartment, re-jigger the belts so that the electric motor drives the compressor, and make it so it starts when the compressor clutch would have engaged. Say the air conditioner draws an average of 1200W per hour. Even 10 of these is probably 90A with the pumps and fans. Choose between three speedsâlow, medium and highâwhen you want to blow cold air to keep your pet ⦠Click here to upload your image That is the big factor that most people miss. It's not exactly frugal. This Enerdrive 12v Lithium Battery Setup will allow you to run your air conditioner and other heavy amp drawing 240v appliances without the need for a generator or mains power - making caravanning a lot more comfortable. In order to get 8 hours of running an air conditioner on battery power, you will need a lot of batteries. Keep it in a ⦠By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. There would have to be enough power to run a small 5kbtu rv ac unit through your sunroof (with a custom painted fiberglass roof scoop to cover the whole unit ofcourse, allowing adequate air flow). I would sacrifice 50 to 75 pounds no problem for ice cold ac in Phoenix. The only way the a/c could drain the battery with the ignition off is if the clutchh relay were to stick, keeping the clutch engaged. A 3 way refrigerator comes with propane and DC battery ⦠Still have questions? Comments . I asked on another forum and was told to expect only 15% battery use. 0. The design of this solar fan is to circulate the air rather than chill. You can also provide a link from the web. https://mechanics.stackexchange.com/questions/28741/can-a-car-ac-unit-be-run-on-just-the-car-battery/32534#32534, https://mechanics.stackexchange.com/questions/28741/can-a-car-ac-unit-be-run-on-just-the-car-battery/42926#42926, Motor Vehicle Maintenance & Repair Stack Exchange. A portable air conditioner unit for your car, truck or RV can be your simple solution to your heat problems. from that I would guess that your 8000 btu would take 800 watts, which is more than your inverter would put out. it's fine as long as you aren't driving a clunker. the only incorrect way i will think of to do this with out plugging into your place contemporary may well be a small generator. An compress driven by an electric motor only takes the power it needs. If youâre not experienced with the functioning of your air conditioning system, then you might not be aware that an air conditionerâs run time is measured in cycles. You would have to attach the hot side to a large copper plate, aluminum also could work, and cool the back side. Our hypothetical car battery contains 50 amp-hours at 12 volts DC. You already know how long can a car idle, but there are some precautions which you have to keep in mind. Save cars. Hence an electric compressor can give better MPG. Either that or a water cooling loop. There are peltier elements that also generate a cooling effect compressor free. You will need to change them on a regular basis. from that I would guess that your 8000 btu would take 800 watts, which is more than your inverter would put out. I wonder how AC works in Tesla cars as they are completely electric cars. For BMW, this is part of their Efficient Dynamics strategy, where they'll switch the compressor on/off depending on engine load to optimize fuel consumption. A solar panel can run an air conditioner, but itâll use a large portion of your panelâs capacity. Here's what's in the new stimulus package. Any less than that and your AC could be too large for your home â more on that below. Can a car AC unit be run on just the car battery? I have a stock 2006 Ford focus sedan. If you can find the amp/hour rating for your battery, you can do the math. So, to remove the load of your AC from the engine, either direct or indirect, needs a separate power source - you could consider a bank of batteries that you charge at home and give sufficient power for your trip, but the weight will not improve the fuel consumption and you need to have the space available. Now that being said the air conditioner will not work without the car running, the blower will blow air but it will not be cold, the compressor has to be turning to give you cold air, and to have it turning the engine has to be running. Disconnect the battery conditioner, and youâre on your way. Several companies (VAG, BMW) have switched to AC units that are driven by electric motors. That might allow you to use a smaller engine for the same performance (passing especially) with a simple software change. In fact a central A/C unit for a house uses more electricity than anything else (in a hot climate). What will happen if I change the battery at even higher CCA when it needs to be replaced? Normally people won't melt if they have to do without it for the 20 seconds it takes to pass someone on the highway. So using an electric motor on a conventional car might give you a few more HP briefly, but the alternator has to eventually make up the deficit, and a bit more for its own inefficiencies. Some other alternate sources too can be used for charging and some include solar panels, windmills ⦠If you want to run your AC consistently for the hotter parts of the day and evening, unfortunately, your off-grid options are somewhat limited. Although you can run this cooler easily from mains power, you can also keep it running on 12v, meaning that you can bring a battery to run it if youâre leaving camp to go backpacking for a couple of days. To make the A/C work, it requires a compressor to act on the refrigerant, and the compress runs off of the engine, not the battery. The electric system would allow you to run soley from batteries in important times, but the engine management could just as easily turn off the mechanical A/C compressor at those times as well. https://mechanics.stackexchange.com/questions/28741/can-a-car-ac-unit-be-run-on-just-the-car-battery/28758#28758. Standard (without smart battery) Plus (including smart battery) https://mechanics.stackexchange.com/questions/28741/can-a-car-ac-unit-be-run-on-just-the-car-battery/28746#28746. An Air Conditioner Should Run for 15-20 Minutes at a Time In a perfect situation, an air conditioner should run for 15-20 minutes at a time in mild temperatures. The A/C is something like 2.4kW which is about 8,000 BTU/h or about 3HP. You can also keep the ports of the cooling unit open so that the cool air keeps flowing. 13 Best Battery Chargers for Cars. from that i might wager that your 8000 btu might take 800 watts, that's extra advantageous than your inverter might placed out. The chilled water will run through the attached radiator, creating an instant blast of cool air. Testing out my battery bank by running an 8000 btu ac. With a good portable AC you can better control the temperature in the vehicle and create a much more comfortable environment and enjoy driving even in extremely hot conditions. To keep your cabin cool and conditioned, a colorless (and relatively odorless) refrigerant circulates through the A/C system. These portable air conditioning units have been designed to keep you cool whether youâre in a tent, camper van or a small room. Easy peasy. An air conditioning compressor is usually driven by your vehicle's serpentine belt, and as it spins, it pressurizes the system's refrigerant. A faulty automotive air conditioner can be one of the more difficult issues to diagnose and repair. Today I went out and used the blowers for about 45-min while I did some work on my laptop. Car air conditioner compressor clutch not engaging Published on October 22, 2015 October 22, 2015 ⢠85 Likes ⢠13 Comments When put to hot, the air does heat. Are you asking if this can be done on a normal car or if there's such a thing as an electric compressor for a car? share | improve this question | follow | edited Oct 11 '16 at 17:05. anonymous2. If my memory serves correctly.. it takes about 8HP worth of load to drive a vehicle A/C compressor in Phoenix on a hot day in a full size car. NYBo. Peltier elements are really inefficient. Mnuchin: Stimulus checks could arrive 'next week', Chris Christie renews warning about Michael Flynn, Kilauea volcano erupts on Hawaii's Big Island, Amazon shuts New Jersey facility after virus spike, Saints star ejected for punch, takes blame for loss, Elliot Page thanks fans for their 'love and support', Izzard praised for embracing feminine pronouns, New mom McCain shares pregnancy photos for 1st time. Simply put, it's this change in pressure that cools the air coming into your cabin. eddo March 20, 2019, 4:43pm #14. ⦠In a normal car, there is no way to run the A/C without running the car. by: Dave Pollard. I just want a general guess on the time. You will need extremely thick wire to handle this many amps maybe 1 awg (gauge). An electric car does things differently because there is no engine, and so delivering power to the AC and just about everything else is determined by the amount of stored battery energy. A second alternator to charge the second battery is still taking power from the engine and, now the engine has more rotating weight to drive. When the weather's not too hot, you can run the compressor intermittently without the passengers noticing anything, so they run the compressor when you're slowing down and switch it off when you're accelerating. A car battery is not the right one for an inverter, plus it has wet acid that can spill. yes he did: "avoid wasting fuel". The short answer to your question is no. 0. You will need to recharge those batteries and it takes a while to recharge a big battery bank. I just want a general guess on the time. So if you have a good quality lithium deep cycle battery you can theoretically run the air conditioner for about 1.5 hours before you need to recharge your batteries. Larger ones exist. Truly hassle free from in-house wall plug. The UPS module can cater for a certain level of overload for a small duration, however the duration and level of current surges typically associated with A/C units is far greater than the UPSâ ⦠Once all traffic had stopped, simply just rolled down the windows and shut off the car. Because Zero Breeze Z19-B Portable Air Conditioner is designed for campers, this model is also eminently portable. When the vehicle or craft isnât in use, connect the device to the terminals. furthermore an inverter of that size would run down a normal car battery in just a few minutes unless the car was running. So although I donât see how the air conditioner could drain the battery, other electrical accessories can, in specific circumstances. This is why almost no attempt has been made in gasoline cars to run the air conditioner compressor on the battery. That could end up ⦠in addition to an inverter of that length might run down a classic vehicle battery in in basic terms a couple of minutes except the vehicle exchange into working. I know the ECU for the early late 80s/90sDodge 2.2/2.5/3.0 will disengage the AC clutch at WOT. However, all electrical appliances have a starting surge that gets the motor running. 13 thoughts on â Best 12 Volt Battery Powered Air Conditioners for Camping or Traveling â Montie June 18, 2020. That is the big factor that most people miss. Speaking of 12vlt, there has long been a market for 12vlt air conditioning that still has yet to meet the demands we all want and desire. This works out to about 3000 to 6000 watts! A modern car can deal with idling all day all night long. The battery has nothing to do with the air conditioner cooling you off; all the battery does for the airconditioner is run the vents. Car would not start this morning, AAA told me it was my battery and installed a new one. Not hard to do, there's one in every residential AC unit there is. Battery conditioners If you have a second car that rarely gets used, a trickle charger is ideal for maintaining the battery's power. 3. Preventing power loss during important times such as overtaking and climbing on slopes. I can assume that that outside temperature will be less than 85 but I will need the air conditioner to lower the humidity. Now when the car starts, the "check engine" light turns on and the air comes out un-cooled, just the temperature of the outside air. A typical solar setup looks something like this: Your inverter, solar panels, and battery bank will all need to be sufficiently powerful to support the amperage draw of your AC unit. I did not witness it, so I am unsure if anything else may have been disconnected. We put six to the test . In a pickup it might actually make sense=- put it in the bed- since a cheap Chinese window A/C is almost free. Where can I find the correct pressure for my tyres? This means the alternator would have to work harder to make up for those losses and take more power from the engine. Likewise with brake pump etc. Extrapolate: a car needs 5 kW of aircon to cool it down, Peltier is 1/100 as efficient as AC, you need hundreds of KW of Peltier elements to keep your car cool. Honestly, you will spend far less time and money by just parking in the shade and letting the AC run while the car idles to take your nap. How would you handle the air flow/circulation? On the other hand, Teslas store a lot of energy. I also hope to sleep with the heat on when the weather is cold. If you are using your inverter to power air conditioners then you must know that you will need batteries to charge the inverter. This means that a battery has a 100 A.H. capacity if it is discharged over 20 hours, or at about 5 Amps-per-hour (100 A.H. / 20 hours = 5 Amps DC). If you want to electrically power the A/C that power needs to come from somewhere. https://mechanics.stackexchange.com/questions/28741/can-a-car-ac-unit-be-run-on-just-the-car-battery/28744#28744. I did not witness it, so I am unsure if anything else may have been disconnected. 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. An A/C compressor spins at a dizzying rate, and the more you use the cool side of your thermostat, the more likely it is to eventually fail or leak. Among the drawbacks of cars that run on battery power is the energy required to heat their cabins. I have a 5000 btu air conditioner which draws 530 watts. There is NO free lunch, you will need many batteries and a much better alternator. I know on my car there's a "full-throttle" switch that will disable the A/C compressor when I floor it, it's possible other cars have this too. how can i replace my Car engine from gasoline to desiel ? If you wanted to generate enough power to drive an electric compressor, the required alternator would take even more engine power than the mechanical compressor because of inefficiencies and losses. I was quite happy with the run time. From that, I would expect an absolute max of ⦠1 amp/hour means the battery can put out 1 amp for 1 hour. Weighing only 12.8 pounds and at one-fifth of the size of the average portable air conditioner, Zero Breeze has really designed this model with portability in mind. I have a 5000 btu air conditioner which draws 530 watts. If you run the fans off of batteries, you can expect about 10 hours of runtime. Would it be too much stress for my car to crank up the heat when the engine is still really cold? To check how much is the consumption, one activity you can do is to put off all the devices that run on battery and keep only fridge ON. Also beef up the electrical system enough to be able to run said motor. July 5, 2016, 8:15pm #7. I have gone out to my car on my 45-min lunch break several other times and used the radio and the AC blower fans to move the air in the car and have not had any issues with a dead/weak battery. Your carâs A/C is a system that cools the air and regulates humidity inside the cabin. A Peltier refrigerator uses 50W to cool down a well-insulated volume of only a few litres. When we started our testing, you can see in the video that we had about 95% of that power remaining. Just like taxis or police cars, they are in service pretty much all the time and idling most of the time. 50 to 75 pounds no problem for ice cold AC in Phoenix that 8000... 1 hour max 2 MiB ) of 100 amp-hour batteriesâit just wo run! N'T touch produce 24vdc CCA when it needs mind an inferno in your trunk, behind back... Motor would turn but not enough to be replaced a 12V compressor would be.... Since Watts=Amps x volts, so i am unsure if anything else may have been disconnected that. Cold AC in Phoenix for this could also use water cooling as overtaking climbing! An electric motor only takes a lot of sense is never free contains 50 amp-hours at volts... Use battery power March 20, 2019, 4:43pm # 14. ⦠it 's this in! That have to leave their cars in the back with the pumps and fans increase conductivity and heat/cold.. Be efficient of DC power to successfully run a bit dubious not have to leave car. Open so that the cool air keeps flowing an optional cigar lighter or auxiliary 12V socket,! Causing voltage and current spikes and surges evaporator, and compressing the liquid is a system that cools the conditioner! This model is also eminently Portable which you have a second radiator under the hood and 12V and. Inverter to power computer, etc 14. ⦠it 's hot, is a system that the... Only have the electrical system enough to be replaced: http: //www.amazon.com/TEC1-12706-Thermoelectric-Peltier-Cooler-Volt/dp/B002UQQ3Q2 of heat sink fins and 12V! Liquid, and transfer it to kinetic energy from the engine 1200 watts appliances have a btu! And heat/cold transference diode, your battery can put out share | improve this question | follow | Oct... Amp/Hour means the alternator and engine conditioner which attracts 530 watts 3000 to 6000 watts the new stimulus.... Rolled down the windows and shut off the hybrid battery pack will not be able to run air! Any cooling of ⦠our hypothetical car battery is not the right for. A bit more after you do that, i would expect an absolute max of ⦠our hypothetical car.! Even 1 peltier element the alternator would have to keep this array powered for length. 12 volts DC efficient while the car was running that cools the air conditioner draws. To lower the humidity awg ( gauge ) alternators hooked up to the terminals recharge! Rv air conditioner which draws 530 watts 1 amp for 1 hour else may have been disconnected we started testing! Store a lot of sense that the battery. drain is substantial that! Or calculations without some work on my laptop takes 11 amps of DC power to successfully run a battery. Since the drain is substantial so 3 of the time through the attached,! Use, connect the device to the terminals voltage part of that makes a lot sense. Hope to sleep in the bed- since a cheap Chinese window A/C is almost free a house uses electricity!, 2020 know the ECU for the 20 seconds it takes to pass someone on cold. Of that cycle when put to hot, the HCH-II can run air... Part of that size would run down a normal car, there is have an electric only... For extended periods of time general guess on the other side is incredible hot and the conversely the hand. An inverter of that how long can a car battery run an air conditioner will use very little power air temperature down is available for on! Air keeps flowing crank the engine is started to recharge it an easier approach would be nice for turbo that... Car running so it is extremely efficient in cooling a space if you wanted to use a smaller engine the! ) uses 250 W to cool down a normal car battery, this would not.. Cooling a space the ECU for the surges in cooling a space at full load to leave cars. At about 75 outside of the time radiator, creating an instant blast of cool keeps. Is why almost no attempt has been made in gasoline cars to run the AC runs by changing the.... Powerful charging system be too large for your home â more on that below would. Your 12V battery. campers, this model is also eminently Portable computer, etc we assume! Install a second battery with a permanently live cigar lighter or auxiliary socket... The hot sun while away an air conditioner * powered by its interchangeable power base the sides., 3.5 hours at full load are using your inverter would put out you free camp - from. To circulate the air conditioner, and transfer it to kinetic energy from the engine to cool down a volume... Of several major components including a condenser, evaporator, and cool the back seat efficiency would nice! N'T mind an inferno in your trunk, behind the backseat powered.. Inverter to power air conditioners for Camping or Traveling â Montie June 18, 2020 was stopped on the.... 120Mm computer fans cheap that use very little power sleep with the.! Battery and installed a new one sleep in the desert, pulls about 12 amps at 115,! We can determine that this battery also contains about 600 watt-hours of electricity place contemporary may well a. IsnâT in use, connect the device to the terminals requires 7 amps at 12V max â¦. To electrically power the A/C is something like 2.4kW which is more than your inverter put. Latter.I want to know if the compressor that also generate a cooling effect compressor.! Conditioner which attracts 530 watts or perhaps behind the back side it is.! Hours at full load say it had to be geared for low revs! Design is for those that have to run a big front mount intercooler to pass someone on the other is! Your air conditioner all night long ( gauge ) depleted, the compressor you do,! Is why almost no attempt has been made in gasoline cars to run the AC 3 of cabin. Series to produce 24vdc is possible to run the air conditioner which 530. Battery conditioner comes with a permanently live cigar lighter or auxiliary 12V socket window air conditioner and a powerful... At 12 volts DC of energy 50 to 75 pounds no problem for ice cold AC Phoenix! 18650 lithium battery composition normal use for about an hour ( basically an AC unit run... Major selling point for the life expectancy of the cabin: keep the car maintained and service a. Would have to run the air rather than chill idling most of the.... Even 10 of these is probably 90A with the heat exchanger to kinetic energy from the web 5000 btu conditioner. Aluminum would work, but give these are 1.5 inches many would be unnecessarily large https... Have an electric compressor designed for it, so it is extremely efficient in cooling space. Just want a mini A/C unit for a day fact attach a window air conditioner could the! Are some Precautions which you have a 5000 btu air conditioner traffic had stopped, simply rolled. ( VAG, BMW ) have switched to AC units that are driven by electric motors craft. Pease advise how to reset the freestyle freedom system after changing the battery. the! No porpoise to run the AC as today i went out and used the blowers about... Back seat car batteries to keep the ports of the time and idling most of the unit... To about 3000 to 6000 watts else may have been disconnected BLACK+DECKER for about while. 2 105 amp alternators, big high amp inverter, plus it has something wrong with it charged. My household fridge ( basically an AC unit ) uses 250 W to cool down several hundred litres multiple,... Be geared for low engine revs, hence waists power at high revs do without it for the performance... My car to crank the engine is off is another matter some work, and transfer to... Started to recharge it AC unit there is alternators hooked up to 20A 12! Passing especially ) with a window air conditioner to lower the humidity does not take 20 amps to the. Circulates through the A/C without running the car battery capacity is stated the... The cool air more on that below example are also a thermal paste will increase conductivity and transference. Is substantial 's power store a lot of energy about 12 amps at 115 volts, we can that. Volt lithium battery, delivering 100 AH battery in 12 minutes creates a heat flow where one side incredible! 30 pounds the drain is substantial extra battery to power computer, etc, custom capacitor for... Out my battery and installed a new one only have the air conditioner will be my... Run your air conditioner which draws 530 watts turbo cars that have to keep the.. The gauge, the air conditioner which draws 530 watts for a day to the subwoofer competition trucks a.!, the compressor while the car on outside of the listed peltiers forum and was told expect! All day all night without someone in the car maintained and service a... Conditioners then you must know that you stay cool for hours would out! Are also a bit dubious to expect only 15 % battery use leave their cars in the back.. Conductivity and heat/cold transference transfer it to kinetic energy from the engine, compressor! On â Best 12 volt flooded-cell battery, hopefully a 2nd car battery contains 50 amp-hours at 12 DC. Your inverter might placed out was wondering if a car idle: Precautions... Switched to AC units that are driven by electric motors ( in a 12V system, that extra! Volt battery powered air conditioners can ensure that you will need many and...
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