How To Choose A Power Inverter?

How To Choose A Power InverterWant to buy something advanced and energy-efficient for your home appliances and electric devices? Then get a power inverter to enjoy a powerful electricity backup. This inverter works with a battery, and I can tell that it is a necessary purchase. Because for this inverter, you can power your appliances and devices in any electricity failure. You can use the inverter in your car also if you want to work on the laptop during your tour. The first thing you have to know is how to choose a power inverter. Through this article, you will get your answer.

How To Choose A Power Inverter?

There are lots of things you should consider when you pick a power inverter for your self. At first, you have to identify how much power back up you may need; then, you can easily choose an inverter that can serve you the same output. Check the capability of its battery, sizes, and versatility. Don’t forget to check the warranty and services also.

Types Of Power Inverter:

All the equipment in the industry and residential use runs on the AC power. The problem of this power is it is not storable. You have to convert this power to DC power to store and use. The power inverter is the power converter that helps to convert the AC to DC power. The conversion processes different, and this variation brings types of inverter in the market. These are power inverter types you will find in the market:

Three Types Of Power Output Work In This Type:

  1. Square wave inverter is the simple type of inverter. In this inverter, the DC to AC power conversation is done with a square waveform, and it fluctuates the AC power, so the AC signal is not pure, and it is not suitable for the devices like laptop, smartphone, refrigerator, etc.
  2. Changed sine wave inverter tries to supply a smooth sine wave power, but phase-shifting gets halt during the power conversion. For this, the AC signal is not stable.
  3. Sine wave inverter is the complicated type inverter that provides waveform power supply. This power is best for running all kinds of appliances and devices. Even it is costly, every house and commercial area prefer this inverter.

The Load Type Inverter Comes In Two Types:

  1. Single-phase inverter that runs with single-phase load. You will find two ways to work with this inverter – one is the half-bridge inverter and full-bridge inverter. In a half-bridge inverter, two thyristors and two diodes work on the transmission. And in the full-bridge inverter, four thyristors and four diodes works.
  2. Three-phase inverters supply the AC power in three-phase loads. These phases work with six diodes and six thyristors in power transmission.

How Do I Know What Size Inverter I Need?

How Do I Know What Size Inverter I Need?Before you for the inverter, you have to know the right size inverter for your use. You have to estimate the power you need to run your device and appliances. And for the car, the overloading issue has to be counted. Check the tools that you want to run with power inverter then decide which inverter will meet your requirement.

The power comes in wattage, and you will find the number in the device’s level. Total up the number and take an emergency number from 10%-20%. The number is the size of your power inverter. If you have a budget, then you can go for a bigger inverter.

Let’s give an example for a clear view: the smartphone comes with 50 wattage power, the microwave is 1200 watts, the LCD tv is 250 watts, and the laptop is 90 watts. These are all the devices that we use in our daily life. Let’s think that you will run all these devices with the inverter. Then add them all, and the total power comes 390watts(50watts+90watts+250watts) = 390 watts.

Add the emergency margin with this total. Let’s add 10%- 390+10%= 429 watts. This number 429 watt means you will need an inverter that can provide more than 500 watts power to run the devices you want to use. The formula I have used is Volts x AMP= watts.

Make sure to calculate the wattage power before taking an inverter because it is waste if you take an inverter that can’t supply the proper amount of energy to run your devices during a power cut.

Note: If you are still in confusion between inverter or generator, which is best for home use, then read the next article and clear your confusion.

How To Choose A Power Inverter?

Now came the challenging part, and that is choosing the right power inverter. You have to consider some points while selecting the power inverter. The points are:How To Choose A Power Inverter?

The Amount Of Power You Need:

This part is essential because you have to calculate the wattage to get the approx. Amount to take the proper size inverter. The size will help to run all the devices you want during any emergency.

Power Output:

There are different types of inverter that work with different power outputs. Check the supported waveform of your devices and home appliances. If you avoid this, then face the sudden damage of your device.


The inverter’s main hero is the battery as all the power source comes from it. So, to know about the type and capacity of the battery is essential. Pick the tubular battery because it is powerful and efficient enough to supply power to any appliances you want.


Look for the inverters that come with versatile and flexible features. Because there was a time that installing a power inverter was considered a costly task and time consuming also. But now there are inverters you can install simple, fast, and free.


You have to pick the inverter per the power requirement. If you want to run heavy tools like drill machine, air conditioner, etc. with the inverter, then you have to go for the inverter that has a vast capacity to run theses heavy-duty equipment. It would help if you had a 4000W inverter to run heavy appliances. And if you want to run small and delicate devices like smartphones, laptop then you can go for the 1500W inverter.

Safe And Service Warranty:

Before anything, the safety feature is essential. Avoid the inverters that don’t have features to protect overloading, overheating, low-voltage situations. And go for the inverter that promises 24/7 service at any cost.


We all have a misconception that inverter is expensive. There are different inverters in the different price ranges. It is up to you to pick the inverter that will run your device at a cheap rate.

Note:  Read the article about the best power inverter for home; you will be on your way to get one inverter for your home as soon as you finish reading.

Frequently Asked Questions

There are some questions and answers below that you frequently asked us.

How many batteries can be connected to an inverter?

There are two 12V batteries connected to an inverter.

Can I leave my inverter on all the time?

No, you can’t as the inverter is designed to cut off when the voltage panel gets low.

How long will a battery-run an inverter?

The battery of the inverter will run for 30 to 60 minutes. It may vary for the condition of the battery.

Final Thoughts

I know it is not a simple thing to purchase a power inverter but not a complex one. As the markets have thousand of inverter models with different features and power supply modes, you have to know how to choose a power inverter to select the right one among them. A power inverter is getting an essential thing to have in every home as the need for power getting high day by day, and power cut is an everyday problem in our life.

Affiliate Disclosure: As an Amazon Associate I earn from qualifying purchases.

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