What is the Difference Between UPS and Inverter?

Today, electricity has become a necessity in life. It is no exaggeration to say that if there is a power outage worldwide, it may paralyze our lives. In order to keep equipment running without interruption even after a power outage, scientists have invented power systems.

UPS and inverters are two of the solutions. Despite the similarity of the role of ups and inverters, people are still confused about the difference between a UPS and an inverter. This article will focus on the differences between ups and inverters so that you can use them better once you understand their functions. Before looking into their differences lets know more about there working.


UPS stands for Uninterrupted Power Supply. As the name implies, it is used to stop the interruption caused to devices during the blackout of electricity. This system is mainly used with computers where it provides the computer sufficient amount of power to save the data and safely shut down when sudden power blackout occurs.

UPS consists of a rectifier to convert AC into DC and charge the battery. This battery is connected to the inverter which converts the DC into AC. A controller is provided to control the functioning of the system.

UPS can provide power supply only up to 10 to 15 minutes. So, this is mainly intended for IT systems and electronic devices that can get damaged with sudden power out conditions.


Inverters are power electronic devices. The main purpose of these device is to convert DC to AC. In inverters, AC power supply is taken from AC mains and converted into DC by a rectifier.

This converted DC charges a battery. As the industrial and household systems work on AC power, the DC from the battery is converted into AC by the inverter. During the power cut, the inverter receives supply from the battery and provides power supply to the electrical equipment. These systems are used in the household to get the power supply after the blackout of electricity. For working of Inverters, no external power supply is needed.

Key Differences Between UPS and Inverter

1. Different directions of focus

You can use a UPS to protect your gadgets from power outages if you don’t lose power frequently. Switching to a UPS is practically fast, and UPS backup typically lasts about 30 minutes.
The inverter takes a little longer to turn on than the UPS, and power outages frequently cause electronic equipment to reboot. Because TVs don’t care about switching delays, UPS favors PCs while inverters are recommended for households.

2. Backup time

A UPS can provide around 15 minutes of equipment backup. The inverter, on the other hand, depending on its capacity, can supply several hours of backup. You can utilize inverters to power your complete home based on capacity. If your neighborhood experiences a lengthier power loss, you can use it to keep at least a few lights and fans on.

3. Maintenance & Lifespan

The UPS does not require any maintenance. Regular maintenance is needed for the inverter. This is because ambient air circulation, dust, and other factors might shorten the lifespan inverter. The UPS’s downside is that the batteries are constantly charged and discharged even when there is no power outage. As a result, the battery lasts 4-5 times as long as the inverter battery.

4. Price

In comparison to inverters, UPS is more expensive. The factors to look into when buying them includes backup time, capacity, charging time, power requirement, crating (quantity of charge in a fully charged cell), and warranties.


In our daily lives, we are heavily dependent upon appliances that run on electricity such as fans, lights, Laptops, AC, fridge, and so on. Inverters and UPS are used to support power supplies when there is power outage either from the Supply Authority or Generator House.

Typically, A UPS is a device that helps in keeping an electrical system for some minutes whenever there is power failure. It makes use of battery which helps to continue power when there is power outage.

While an Inverter is an electronic gadgets which is used to supply power by converting the direct current of a battery into alternating current. Whenever there is a power cut, electricity supply to these appliances is cut off and they stop working. However, if you have a backup supply in the form of devices such as UPS or inverter, you have ensured uninterrupted supply of power to your appliances and will not be upset with power cuts.

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