What Will A 750-Watt Power Inverter Run? | Specs You Need to Factor In

A 750-watt inverter can run multiple household appliances, gadgets, and power tools. When there is no access to standard AC power, you can use a 750-watt Inverter to provide electric power for AC appliances. Our guide will show what will a 750-watt power inverter run.

Key Takeaways

  • A 750-watt power inverter can power electrical appliances if their overall continuous power consumption is under 750 watts.
  • You can power electrical appliances when the inverter surge power rating is typically 2 to 3 times the maximum power rating.
  • The surge power is essential for inductive loads, such as refrigerators and air conditioners, whose startup power consumption is considerable.
  • The inverter voltage in most 750-watt inverters is greater than 12 volts.

You should be aware that the time a 750-watt inverter will run depends on how long you intend for it to operate. There is a difference between the number of appliances a 750-watt inverter can power for one hour and three hours. Your rundown time determines whether your 750-watt inverter will operate small-mid or heavy-duty appliances.

A black inverter

What Will A 750-Watt Power Inverter Run?

A 750-watt inverter can handle surges of up to 1500 watts and provide continuous power at 750 watts. As a result, a 1500-watt load can only be powered by a 750-watt inverter for a short time. A 750-watt inverter can power multiple power tools and household devices. Below are some appliances you can run using a 750-watt inverter:

  • Blender
  • Printers
  • Speakers
  • Laptops
  • LED TVs
  • Mini fridge
  • Slow cooker
  • Some fridges
  • Portable fans
  • LED light bulbs
  • Power tools like drills
  • Selected water pumps
  • Selected coffee maker
  • Cellphones and tablets

Woman on a beach holding a cellphone

What Is the Right Inverter Size?

Do you want to know the ideal inverter size for your home, or can you get by with an inverter to run your TV? Adding up the total wattages of appliances you want to power helps determine what size inverter you need.

Home power inverters could be worthwhile if you are experiencing regular power outages or your electricity costs are skyrocketing. Size is among the essential considerations when looking for an inverter.

The typical power and surge power requirements will determine the correct size. You should supply extra surge power if your appliance has a startup requirement to prevent the inverter from being overworked.

So, we need to estimate the combined power consumption of our home appliances before getting an inverter. Since the inverter power requirements of each home are unique, you shouldn’t just install the same ones as your neighbors.

The optimum inverter size will be determined depending on the power requirements and preferences. Always select a higher-capacity inverter if the actual battery capacity is unavailable, i.e., a 1000-watt inverter or a 3000-watt inverter. The types of batteries are an important consideration when selecting an inverter, along with some other factors.


The lead-acid batteries meet all specifications, including being portable, having a longer life, being rechargeable, having less maintenance, and producing sufficient current. When properly maintained, these batteries have a lifespan of three to four years.

Close up of a blue power inverter


The sealed acid batteries used in maintenance-free batteries have a lifespan of four to five years. Electrolyte levels of these batteries do not necessitate constant checkups or maintenance.


The most typical type of inverter battery is a tubular battery; they have a reputation for high efficiency and a long lifespan of up to 8 years. Tubular batteries are a popular option despite their high price due to their multiple desirable features.

Tubular battery

How Does an Inverter Work?

Inverters are one type of power electronics device that controls the flow of electric power. Converting direct current (DC) to alternating current (AC) is essentially what an inverter does. Thus, a DC input transforms into an AC output.

Let’s look at a simplified circuit in which a DC source is powering an AC load. Four switches flip the DC to AC. In this configuration, switches 2 and 3 will open while switches 1 and 4 are closed, and vice versa. 

The result will be a direction change in the current flow through the load. As a result, the load will experience AC even though the power comes from a DC source.

  • When switches 2 and 3 are closed and switches 1 and 4 are open, electricity will flow from the right side of the light to the left.
  • If switches 1 and 4 are closed and switches 2 and 3 are open, the current will flow via the left side of the light.

What to Keep In Mind Before Running a Load on the Inverter

Inverters can be handy when you’re off the grid yet still need to use standard household appliances. Do you plan to purchase or upgrade an inverter this season? Therefore, learn the fundamentals and research instead of falling for marketing gimmicks. The following are some considerations before investing in an inverter.

Understand Your Sine

Modified or pure sine wave inverters perform well. However, a sine wave inverter is the better option for those using sensitive devices (like CPAP machines) or items with chargers (like a drill or toothbrush).

Sine wave power is similar to what you receive at home, with no drops or spikes in the voltage. The powered appliance will respond the same way as if you always plugged it into a wall outlet.

Premium power monitoring costs more. However, preventing damage to expensive, sensitive equipment is well worth it. Modified sine wave power, however, is suitable for standard household devices and appliances.

Prepare for Surges

The power you will need for the surge should also be considered when evaluating continuous power. When you first power on any appliance, it draws more power—sometimes twice as much—than it will need to run effectively. Top-notch inverters will have a surge capacity that is twice their rated capacity. Thus, a short 2,000-watt power spike should be manageable by a 1,000-watt converter.

The longer the inverter can withstand the surge, the better it is. The surge power draw of some commercially available inverters can overload the inverter and cause it to shut down in a matter of milliseconds. Potential buyers must look for alternatives that can function for at least five seconds.

A cable on a fire

Larger Size Isn’t Always Better

An easy solution would be to recommend purchasing the largest inverter available. However, there are better approaches than this. Some power inverters plug into a cigarette lighter that is only 300 watts, and those that are 5,000 watts don’t.

Consumers need to do power usage surveys and have a firm grasp on their intended inverter usage. It includes the appliances that need power and the other devices you will use concurrently. That will help them determine the “appropriate size” of the inverter for their needs.

Look For UL Certification

Aim to get an inverter that’s been ‘Regulatory Listed,’ preferably by a reputable organization like UL or ETL, and carrying a UL458 rating. It is a safety measure to ensure that electrical problems are avoided, as a third party has vetted the inverter. Inverters and chargers for portable use must have the UL458 certification. Non-UL458 units must meet stringent environmental, vibration, and thermal criteria.

UL Certified mark

How Many Amps Can a 750-Watt Inverter Draw?

Does your inverter provide 750 watts of power? Then, you have to determine whether your inverter’s voltage is 12, 14, 24, or 28 volts. Most 750-watt inverters have an output voltage higher than a 12v deep cycle battery.

Since 12 volts is the least possible value, we’ll stick with that for this calculation. Therefore, the inverter’s amps will be 750 watts divided by 12 volts (battery voltage), equaling 62.5 amps if the inverter efficiency is 100 percent. The maximum current draw of a 24V inverter is 31.2 amps.

The inverter’s capacity for 100% efficiency is unlikely. Therefore, we’ll assume it’s at least 80% efficient instead. The new approximate amperage is 78.13 amps = 62.5 amps / 0.8).


How Many Batteries Do I Need to Run an Inverter?

The number of batteries you should connect to a 750-watt inverter varies based on how long appliances will run in hours. You can use the following formula to find out how many batteries you need:

Inverter Wattage * Runtime in hours = Total Watts / DC Volts = Required Amps.

It is preferable to keep the batteries dry while calculating this figure completely. Consequently, it may be essential to acquire a larger battery if the overall amps approach the battery’s capacity.

You do not require a battery bank if connected to a grid-tied system. The inverter will operate on the primary power source. Your appliances will continue to run as long as electricity is available. However, the inverter’s power source will be the battery bank if you are in a solar-powered RV or mobile home (see also RV converters).

A black 750 watt inverter

What Can I Run off a 750-Watt Inverter?

A 750-watt inverter has enough power to run appliances like a DVD player, television, LED lights (i.e., 69w led lights), satellite receiver, and a compact refrigerator or freezer. You can plug in gadgets such as a digital video camera to record videos when the battery is low. The 750-watt inverter is also ideal for short camping trips. A DC to AC power inverter is a must-have if you plan on camping in a location that does not provide electricity. You can also power a blender, coffeemaker, toaster, and boom box using a 750-watt inverter.

How Long Does a 750-Watt Inverter Last?

The total power consumption of all linked devices and the battery capacity (Ah) will largely determine this.

If you have 750 watts of linked appliances, for instance,

  • Runtime is roughly 48 minutes when using a 100 AH AGM or GEL battery with an optimum discharge of 50%.
  • Runtime is approximately 1 hour and 36 minutes from a 200 AH AGM or GEL battery when discharging at the recommended 50%.

The use duration increases when the appliance’s power consumption is below 750 watts.

How Long Can I Run a TV on an Inverter?

The time a power inverter can operate a television relies on the battery’s usable capacity and power consumption. For instance, a 50W television may run for up to 20 hours on a 12V 100Ah lithium battery and inverter.

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