Whenever you intend to purchase an inverter battery, there’s a need to know some vital data in your thoughts. Like how a lot would be the backup of the inverter battery, what number of hours of backup shall be accessible for what number of ah batteries, and many others. So right here you’ll know with the informative data system:

Backup Time Calculation Formula:

Backup Time = Battery Capacity (in Ah) * Battery Voltage (in V) * Battery Efficiency (in %) / Connected Load (in W/h)

For instance:

Case 1: Lead Acid Battery

If you will have any capability of lead acid battery (80Ah to 200Ah), then you may calculate battery backup time as per beneath instance. I’ve taken right here the most well-liked inverter battery 150Ah battery. When we calculate battery backup time of any kind of battery, we ideally use 400-watt house load, so the related load is 400 watts per hour. Let’s calculate backup time now:

Backup Time = 150Ah * 12V * 0.75 / 400 W

                        = 1350 W / 400 W

                        = 3.3 hrs.

Note: An effectivity of lead acid battery is approx. 70% to 75%

That means, if we run 400-watt house hundreds on 150Ah inverter battery, then it provides approx. 3 hr. half-hour backup time. Depending upon backup time, you may select battery capability.

Case 2: Lithium Battery

If you select a lithium battery for house inverter equivalent to 100Ah, 12V, then you may calculate backup time as per above system. All parameters shall be similar, let’s know backup time of lithium battery:

Backup Time = 100Ah * 12V * 0.98 / 400 W

                        = 1176 W / 400 W

                        = 2.94 hrs.

Note: An effectivity of lithium battery is approx. 95% to 98%.

That means, if we run 400-watt house hundreds on 100Ah lithium inverter battery, then it provides approx. 2 hr. 45 munities backup time. Like this instance, you may calculate backup time of CAML 100, 5kWh lithium inverter battery.

Source: Himanshu Chaprana, Student of B. Tech (Electrical & Electronics Engineering) – Manav Rachna International University, Faridabad, Haryana

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