The closest available battery size is 50ah. If the AC pulls 7 amps an hour, that would be 42 amps for 6 hours. A 3000 watt inverter and a 100ah battery bank can run the AC for 5 to 6 hours. It is possible to run a 5000 BTU air conditioner with solar panels, but without batteries you will not be able to use the unit at night.Ī 5000 BTU AC draws 5 to 7 amps an hour. How Many Batteries Do I Need to Run a 5000 BTU AC?Īn off grid system needs a generator or a battery bank to power an AC. There is no runtime limit, but this is not the case if your home is off the grid. In that case you do not need any batteries to operate the AC or any appliance. Most homes with solar power are connected to the grid. In the event of a power outage, you won’t be able to run the AC even on solar since it gets shut down for safety reasons. The inverter can draw energy from your solar array or the power company, so the AC can run continuously.Īn AC running on a grid tied inverter will only stop if the main power gets cut off. If your solar system is on the grid, you can run the AC as long as there is power. No matter what the inverter size is, it is only as good as its power source. The runtime depends on the inverter power source. How Long Will a 3000 Watt Inverter Run a 5000 BTU AC? Obviously it is going to need more watts during the summer as you will be running it at higher settings. f you are running other appliances with heavy power usage, a larger capacity inverter will be needed.Īir conditioning power requirements can vary depending on the season. This also assumes the inverter is only running the AC. If it is three times you will need a bigger inverter. The table assumes the starting watts is twice the running watts. If you have a 6000 BTU air conditioning unit, the Ampeak 2000W Power Inverter should be able to run it. The guide makes it easy to see what inverter size you need. You should always check the operating manual or manufacturer to get the specific power requirements. You can do the same with a refrigerator.įor comparison, here is the power consumption of various AC units and what inverter size you need. If the power draw is in amps, multiply amps by volts. To find out how many watts an air conditioner uses, check the model nameplate or its product manual. Two ACs listed at 5000 BTUs might use different levels of power depending on the settings used. Please keep in mind there are different types of AC systems and settings. If you are going to run large appliances on solar power, invest in energy efficient products. Modern air conditioners are more efficient so it is more ideal for solar inverters. The older the AC, the more watts it consumes. There will be times your usage will be higher or lower so you have to account for that. Power consumption given for AC units and other appliances are for average usage. The power consumption will change depending on the weather and configuration settings. The hotter it is, the harder the motor has to work to cool the air. Of course there are different types of air conditioners and how you set them affects the power consumption. So even if a 5000 BTU needs 600 watts to run and 2000 watts to start, it will not be a problem. So this means a 3000 watt inverter has a 6000 watt surge watt limit. Inverters are also rated according to running watt capacity. Once the AC is running, it will consume 500 to 600 watts depending on the settings you chose. ![]() It is not as if the AC is going to use all 1500 watts from the inverter power source. The surge watts is only going to take a second or less. Either way a 3000 watt inverter should have no problem handling this. In most cases, the surge is double or three times the running watts.Ī 5000 BTU AC might use 500 to 600 watts to run, but it might need 1000 or 1500 watts to start the motor. However, an AC with a high EER rating will consume less than that when it runs compared to when it starts.ĪC system power consumption often states the running watts, which is different from its starting or surge watts. One BTU is about 293 watts, so 5000 BTUs is 1500 watts. It is the standard measurement for AC units. How Many Watts Does a 5000 BTU AC Use?īTU stands for British Thermal Unit and determines how much heat is moved from the interior to the outside. The inverter can run the AC for up to 6 hours a day with a 100ah battery. So if you have a 3000 watt inverter, is it enough to power a 5000 BTU AC? And for how long?Ī 5000 BTU AC needs 1000 to 1500 watts to start up and 500 to 600 watts to run continuously, so a 3000 watt inverter is sufficient. For more details, click here.Īir conditioning units are energy intensive appliances, so if you are running a solar system, the components must be up to par. As an Amazon Associate, this site earns commissions from qualifying purchases.
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