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Difference Between Inverter and UPS?


Last updated on February 24th, 2023

While both inverter and UPS (Uninterruptible Power Supply) are devices used to provide backup power during power outages or interruptions, there are some key difference between Inverter and UPS:


An inverter is a device that converts DC (Direct Current) power from a battery or other power source into AC (Alternating Current) power that can be used to power household appliances or electronic devices. On the other hand, a UPS is a device that is designed to provide uninterrupted power supply to electronic devices in the event of a power outage or interruption. It typically incorporates a battery backup system and surge protection to maintain the supply of power.

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Backup Power

An inverter typically provides backup power for a short period of time, usually a few hours, whereas a UPS provides backup power for a longer duration, often several hours or even days.

Response Time

Inverters have a slower response time to power outages and can take a few milliseconds to switch from mains power to battery power, while UPS devices have a faster response time, typically switching over to battery power almost instantaneously.

Power Output

Inverters can generate a higher power output compared to UPS systems, making them suitable for powering larger appliances like refrigerators or air conditioners. UPS systems, on the other hand, are typically designed to provide backup power for smaller electronic devices like computers, routers, and modems.

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Inverters are generally less expensive than UPS systems, especially if they are designed for small scale residential use. UPS systems are generally more expensive as they incorporate more advanced features like surge protection and battery backup systems.

Battery Life

Inverters use batteries to provide backup power, but their battery life is generally shorter than the batteries used in a UPS. UPS batteries are designed to provide backup power for a longer duration and can be replaced easily if needed.

Voltage Regulation

Inverters typically do not regulate the voltage of the power supply, which means that they may not be suitable for sensitive electronic devices that require stable voltage levels. UPS systems, on the other hand, often incorporate voltage regulation to ensure stable power supply and protect electronic devices from power surges or dips.

Noise Level

Inverters can generate some noise during operation, especially when they are powering larger appliances like air conditioners or refrigerators. UPS systems, on the other hand, are generally designed to operate quietly, making them suitable for use in homes or small offices. You can also contact one of the top 10 Online UPS Manufacturers in Mumbai to know more about the noise level in the UPS system.


Inverters require regular maintenance to ensure proper functioning, including battery checks and replacement if needed. UPS systems also require regular maintenance, but their batteries typically last longer and may not require replacement as frequently.

Overall, both inverter and UPS systems have their own advantages and disadvantages. Inverter systems are suitable for small-scale residential use, while UPS systems are better suited for businesses or larger electronic devices. It’s important to choose the right device based on specific requirements and usage patterns to ensure efficient and reliable backup power supply during power outages or interruptions.

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