In India, it is not uncommon to have power outage issues. In fact, it can sometimes be quite frustrating when your computer unexpectedly shuts off or your mixer/juicer stops working due to a power outage while you’re using it. This is where using inverter batteries can be a significant advantage; they can help keep important electrical devices at home running uninterrupted, even during a power outage. So, the inverter works as a backup power source.
Moreover, even if you have the best inverter battery at home, each battery has its own backup time limit. It is also important to know the exact inverter battery backup time and understand how to calculate the battery’s duration. This could help you get uninterrupted power during an outage.
The inverter battery backup time essentially refers to the duration for which your battery will power the devices connected to it. The calculation of the inverter’s battery backup time can be influenced by several factors, including the battery’s power capacity (measured in ampere-hours, i.e Ah), the total load on the inverter, and the inverter’s efficiency.
However, if you want to calculate the inverter battery backup time manually, the process is actually simpler than you may think. You can use the following formula:
Battery backup time (in hours) = battery capacity (Ah) x battery voltage / total load (in watts).
Let us understand the battery backup time calculation better.
Let’s assume that the inverter battery you have installed at home has a capacity of 150Ah and operates at 12V with a load of 300W. As per the above formula, the calculation would be
Battery backup time = 150 x 12 / 300 would be approximately 6 hours.
However, the efficiency of the inverter that you consider should be around 80-90%, as it can affect the actual backup time. Using the above formula, you can determine exactly how long your inverter will function and keep the devices connected to it running in the event of a power cut.
If you find manual calculation too overwhelming, you can use an online tool, such as an inverter calculator, to determine the inverter battery backup time and accurately estimate how long your battery will last. You can easily find such tools online, and they are quite user-friendly. You simply need to enter the values in the corresponding sections, and the tool will provide the result instantly.
The following table outlines the estimated battery backup time calculations for different inverter batteries with varying capacities, voltages, and loads attached to them.
| Battery capacity (Ah) | Voltage (V) | Load (W) | Battery backup time (in hours) |
| 100 Ah | 12 V | 200 Watts | 6 hours |
| 150 Ah | 12 V | 300 Watts | 6 hours |
| 200 Ah | 12 V | 400 Watts | 6 hours |
| 100 Ah | 24 V | 300 Watts | 8 hours |
| 150 Ah | 24 V | 450 Watts | 8 hours |
*Please note: The actual backup time of the inverter battery may vary depending on the inverter’s efficiency and other factors.*
Power outages can cause great inconvenience and also disrupt your work and daily routine. In such a situation, having an inverter battery can be a lifesaver; it will keep the connected devices running and allow you to continue with your work. Here are a few other benefits of using an inverter battery.
The inverter batteries are relatively easy to maintain, and you don’t need to spend a lot of time and money on keeping the battery running efficiently. It is better to invest in a good-quality inverter offered by credible brands like Tata Green Batteries.
The brand is recognised for offering a superior range of tubular inverter batteries designed to provide consistent backup during power outages. Additionally, these batteries offer quick charging capabilities and long-lasting performance, ensuring an uninterrupted power supply for both homes and small businesses alike.
Generally, a high-quality inverter battery, such as that from Tata Green Batteries, is manufactured with superior materials and advanced technology, which enables it to work efficiently for an extended period. Additionally, some of the highest-quality inverter batteries are designed to prevent water loss, withstand high temperatures, and minimise failures. So, you do not need to replace the inverter batteries frequently.
If you live in an area where power outages are frequent, having an inverter battery with quick charging capacity becomes a necessity. Apart from fast charging, a battery with higher capacity is equally important, and it can provide backup for a longer period.
An inverter battery is a necessity in both homes and offices nowadays; it helps keep connected devices running during a power outage, allowing you to continue working or carrying on with your routine.
Do your due diligence when choosing the best quality inverter. Knowing how to calculate the battery backup time enables you to determine exactly how long the battery will last, allowing you to plan your work accordingly.
