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Battery Backup vs. Generator: Get Reliable Backup Power

Battery Backup vs. Generator: Get Reliable Backup Power

Imagine a situation where you live in an area with extreme weather, which may cause regular power outages. That is where you would be looking for the right power backup solution for your home. With options such as battery backup and home generators being available, which one among them would you prefer? Who wins in the race of Battery Backup vs. Generator? Let us try finding out.

What Is a Home Battery Backup System?

Home battery backup systems are the backup devices that would store energy and help you power your devices in the case of an outage. The battery backups generally run on electricity and offer the power when needed.

The battery backup systems, as the name itself should indicate, do not generate electricity on their own. They store the energy and then deliver it when needed. The battery backup system is generally used for uninterrupted power to critical devices or systems, such as data centers, hospitals, and emergency services.

How Does It Work?

The way a battery backup system works would largely be based on the type of battery backup that you have opted for. In most cases, the battery backup system consists of a battery, an inverter, and a charge controller. The battery would store the energy from the mains supply, and the inverter converts the stored energy into AC current, which is what your appliances and devices need. The charge controller undertakes the task of regulating the electricity between the inverter and the battery.

The steps involved in the working of a battery backup system can be explained through the following:

  • The mains power or the power grid provides power to the battery in the battery backup system.
  • The battery gets charged.
  • The battery backup system consists of a mechanism to check the mains system outage.
  • When the power goes out, the battery backup switches to the battery power.
  • The battery backup system provides electricity to your appliances.

Pros and Cons


  • Battery backup system provides instant power during outages, which ensures that the critical devices do not run out of power.
  • They do not require much maintenance.
  • They do not emit any harmful gases.
  • They run very quietly.
  • They are highly efficient and provide reliable power.  


  • The time for which they provide backup depends on the battery’s capacity. They can provide power only for a limited time period.
  • They come with a high initial cost.
  • The batteries need to be replaced as they come with a limited lifespan.

What Is a Home Generator?

The Home Generator system makes use of the generator system for supplying power in cases of outages. The generators are deployed in cases where you need a continuous power supply. The standby generators are connected to your home electrical system and kick in as soon as your power supply goes off.

Home generators generally work with fuel, and they need to generate electricity. The primary fuels used in a generator would include natural gas, liquid propane, or diesel. There are generators that make use of solar energy as well for generating the electrical supply.

How Does It Work?

The generators normally work on the principle of internal combustion. Most the generators use internal combustion engines that are powered by the burning of fuel. The construction and exact working of the home generator would depend on the fuel type used.

The primary steps involved in the working of a generator would include:

  • The internal combustion engine is started.
  • The engine turns the shaft of the generator.
  • The shaft of the generator spins a coil of wire in a magnetic field.
  • This process generates electricity.
  • The electricity thus generated is routed through your electrical system.

You can have an automatic generator that switches itself on as soon as the power supply goes off or the manual ones that need to be started manually.

Pros and Cons


  • They generate the electricity rather than storing it.
  • They can provide a high-power output.
  • They can provide power output for prolonged hours.
  • They tend to be extremely reliable.
  • Cost-effective options.


  • Come with a high maintenance cost.
  • Can be quite noisy – even when the new age generators have reduced the sound to a better extent.
  • They can produce emissions.

Battery Backup vs. Generator: Which One to Choose?

The choice between a battery backup and a generator can be quite tough as both of them have their own plus and minus points. It will finally boil down to your requirements and the budget you have.

The battery backup systems do not need any fuel and thus end up being safer for the environment. You do not need to purchase fossil fuels regularly. But they do not provide you with a continuous power supply. Since they depend on the power stored in the battery, you will end up getting a backup for a shorter period of time.

In cases where you are facing frequent power outages, we would recommend using a generator. That is because you can supply fossil fuels even when the outage lasts several hours. If you vary on fossil fuels and want to take care of your environment, we would recommend generators based on renewable energy sources such as Anker SOLIX F2000 Solar Generator, which tends to offer a long-lasting solar power-powered electricity supply.

The Anker SOLIX F2000 Solar Generator is built to last for a decade, thanks to its InfiniPower™ technology combined with LiFePO4 batteries, ultra-durable electronic components, a smart temperature control system that monitors temperature up to 100 times per second, and an impact-resistant structural design.

In terms of power output, the Anker PowerHouse 767 offers 2400W to power up to 12 devices. It features an exclusive RV port, 4 AC ports with a wattage of up to 2400W, 3 USB-C charging ports, 2 USB-A ports, and 2 car outlets, making it a comprehensive solution for powering multiple devices at once.

The Closing Thoughts

Ultimately, deciding whether to install a battery backup or a generator comes down to your individual needs and wants. A battery backup system can provide reliable power for smaller, simple appliances during short blackouts but is not enough for larger homes with more electricity-dependent devices. Generators are well-suited for big power outages but often require manual refill and refueling. On the whole, there is no “right” answer as both battery backups and generators come with their own advantages and disadvantages — it all depends on your specific situation. Do your research, assess your needs and then make the choice that best fits you and your loved ones!

FAQs (Frequently Asked Questions)

Is battery backup better than a generator?

It depends on the situation. Battery backups are more reliable for smaller, simple appliances and shorter power outages, while generators can provide a continuous power source for larger homes with energy-dependent devices.

Are Battery Backups a Valuable Investment?

The battery backup should definitely be the best in terms of investment. Depending on the exact power requirements of your home, you can choose the right battery backup solution that would meet your needs.

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