Powerful Calculators: Inverter Size, Battery Capacity and Battery Backup Time Calculators
Are you tired of struggling with complex calculations for inverter size, battery capacity, and battery backup time? Look no further! Our powerful calculators are here to make your life easier. With accurate and efficient results, you can trust our calculators to provide you with the information you need to make informed decisions. Don’t waste any more time on manual calculations – try our calculators today and experience the convenience and reliability for yourself!
Load Calculator: Know Your Power Consumption
To determine the total load of the appliances and devices you want to run, follow the below steps:
Step 1: List down all the appliances with their Watt consumption (check the package box or the back size of the appliance you will find the specification details printing on the sticker) and No. of appliances you want to run on backup during power outages.
Step 2: For ease of calculation make a table with three columns, each for Name of Appliance, Watt consumption and Numbers of appliances. For reference, check the below table :-
| Name of Appliances | Watt Ratings | No. of Appliances |
|---|---|---|
| Led Bulbs | 9W | 5 |
| BLDC Fans | 25W | 4 |
| Laptops | 100W | 3 |
| 40 Inches LED TVs | 60W | 2 |
Step 3: Now multiply all these Appliance’s Watt Ratings with their respective quantity.
Like, Lead Bulb: 9W*5 = 45W, BLDC Fans: 25W*4 = 100W, Laptops: 100W*3=300W and LED TVs: 60W*2 = 120W.
Step 4: To determine the Total Load, add all the Watts of the appliances together: 45W +100W + 300W + 120W = 565 Watt.
This total load is very crucial in determining the right size of Inverter, perfect size of battery and calculating the battery backup time. We have covered all these three calculations below to help our readers, so do check out.
Inverter Size Calculator: Perfect Powerful Inverter
To determine the size of the Inverter which perfectly suits your power backup requirement, here is the step by step calculations:
Step 1: Find out your total power load that will be consume by your selected appliances at the time of power outage. In previous section “Load Calculator” we have covered how to calculate your total load. For understanding, lets take 565 Watts as our total load.
Step 2: We have to find the power factor of the inverter i,e. represents efficiency of the inverter. Most of the good inverter has efficiency of 70% to 80% means in conversion of direct current (DC) to alternating current (AC) the inverter losses some energy. So,if we take 70% as efficiency of the inverter the power factor will be 0.7 .
Step 3: Now to find out the size of the inverter i,e. VA – Voltage Ampere Rating (determines the maximum load the inverter can handle), we have to multiple the Power Factor with the Total Load. In our example, 565 Watt/0.7 = 807 VA. For this size requirement we can go for a 800VA Rating Inverter.
Size of the Inverter (VA Rating) = Total Load/Power Factor.
Battery Capacity Calculator: Right Capacity of Battery
To determine the right capacity of battery that fulfils your desired backup requirement at the time of power outages lets do calculations. Here is the formula:
Battery Capacity (Ah Ratings) = Required Backup Time (Hours)*Total Load (Watts) / Input Voltage (12 Volts)
For example, lets calculate the Battery Capacity with above Load requirement and assuming we need power backup for 3 Hours.
Battery Capacity = 3 Hours*565 Watts/12 Volts = 141 Ah.
So, for this battery capacity we can go with 150 Ah rating Battery as battery comes with specific Ah rating so it is advisable to go with the closest Ah rating of your desired battery capacity.
Battery Backup Calculator: Know the power backup time
To determine the power back time of your Inverter Battery System during the power outage with your running appliances, lets do the calculations. Here is the formula:
Battery Backup Time (Hours) = Battery capacity (Ah Rating)*Input Voltage (12 Voltage) / Total Loads (Watts)
For example, lets find out the backup time provided by 160 Ah rating Battery for our 565 Watt Load.
Battery Backup (Hours) = 160 Ah*12V / 565 Watts = 3.3 Hours.
So, if you are looking for a Battery which gives 3 Hours backup time then you can confidently go for 160 Ah Rating Battery. If you are looking for more backup time then you need battery with more Ah rating than this.