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Power Up Your Knowledge: What Should You Consider When Choosing an Inverter with Battery Combo?

We all have witnessed a significant dependency and increasing demand for electricity. The increasing demand for electricity leads to more frequent power outages, which makes inverters an essential need in our daily lives. Outages can be a huge inconvenience for many as they can disrupt day-to-day activities.

That’s why individuals are looking to invest in a good-quality inverter with battery combo that can help them cope with frequent power cuts.

Image Source: Luminous

What are Inverters?

An inverter is a power conversion system that converts the direct current (DC) voltage to an alternating current (AC) voltage. Usually, the input DC voltage is lower than the output AC, which is the same as the grid supply voltage, either 120 volts or 240 volts, depending on the country.

It allows a battery-based system to run conventional appliances through conventional home wiring. There are direct ways to use DC, but for a modern lifestyle, you will need an inverter for the vast majority of your devices.

What are Batteries?

A battery is the backbone of an inverter system. It performance and life of an inverter largely depend upon the battery quality. It is the battery capacity that decides how long your inverter will provide power to your appliances. Battery capacity is measured in AH, which stands for Ampere Hours. How many amperes will the battery discharge every hour of use? A 100AH battery with a discharge of 5 amps will last 20 hours.

Factors to Consider When Choosing an Inverter-Battery Combo

  1. Power Requirements:

The first step is to calculate your power requirement. Simply stated, calculate the energy required by your basic appliances. This could include your fans, lights, televisions, and other essential devices. This will help you determine what size inverter with battery to buy.

Suppose you want 2 Fans, 4 Tube lights, 2 CFL & 1 television to operate at the time of power failure. For instance,

ApplianceEnergy Use in Watts
1 Fan 70
1 tube light60
1 CFL25
1 Television 120

Therefore, your total power requirement is ( 2*70 +4*60 + 2*25 + 120) = 535 watts.

  1. Choose an Inverter with the Appropriate VA Rating

Determine the VA (Volt-ampere) rating of the required inverter, which denotes the combined electrical potential and current delivered by the inverter to appliances. In ideal circumstances, when an inverter operates at a hundred percent efficiency, the power drawn by electrical devices matches the power provided by the inverter. 

However, practical scenarios seldom achieve this perfect efficiency. In reality, most inverters exhibit an efficiency range spanning from sixty percent to eighty percent. This efficiency, referred to as the power factor, represents the ratio between the power demanded by appliances and the power supplied by the inverter. Typically, the power factor of inverters falls within the range of 0.6 to 0.8.

  1. Battery Capacity

In an inverter system, the battery serves as its fundamental support structure. The quality of the battery significantly influences the performance and longevity of the entire inverter setup. A crucial factor to consider is the battery’s longevity, often referred to as its capacity.

This metric determines the duration for which your inverter can supply power to connected appliances. Battery capacity is measured in AH, representing the number of amperes the battery can discharge per hour of usage. For instance, a 100AH battery discharging 5 amps will sustain operation for approximately 20 hours.

  1. Ensure the Durability of the Combo

When looking for an inverter battery combo, another factor to be kept in mind is its durability. You would want a more long-lasting combo to reduce maintenance or replacement costs.

Why Choose an Inverter with Battery?

It is very important to understand what is the right inverter for your home. The power requirement at your home can be different from your neighbour’s home. So do not just blindly install the same inverter (in terms of power) in your home.

You can increase the capacity of your inverters to provide longer backups with the durable inverter machine and inverter battery combos. One of our reliable inverter brands, Luminous, offers an inverter battery combo, as they provide long-term battery backup to run all your essential systems and appliances at your home or office.


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