Backup time battery ah x 12v x n x efficiency of battery load in watts where battery ah ampere hour capacity of battery.
Inverter backup time formula.
When the battery backup time is 10h k 1.
Formula to calculate the back up time of inverter battery.
With circuit diagrams a br reply.
1 ceiling fan 75 watts.
Back up time of inverter battery battery voltxbattery ah rating total watts on load.
The battery backup time in hours can be calculated using following formula.
Similarly the battery is an integral part of the inverter.
With example of 120ah battery.
Calculation about no of solar panels batteries rating backup time inverter ups rating load and required watts.
Inverter battery backup time is calculated as.
The performance of the inverter depends on the connected battery and vice versa.
For calculating inverter ups back up time follow these formula.
Battery charging current and battery charging time formula easy charging time and charging current formula for batteries.
Back up time battery voltage ah rating n n total wattage load where n no of batteries.
So if a person use 1 ceiling fan 1 tube light 2 15watts cfl simultaneously with 150 ah battery then the backup time will be calculated as.
V battery pack rated voltage.
N number of 12 v batteries needed.
Back up time battery power in watt hour wh connected load in watts w battery power in wh battery capacity in ah x battery voltage v x number of batteries.
Backup time battery ah x 12v x n x efficiency of battery load in watts.
When the battery backup time is 3 5h k 0 8.
Where battery ah ampere hour capacity of battery.
Unit volt v η battery inverter efficiency.
When the battery backup time is 5 10h k 0 85.
The battery backup time in hours can be calculated using the following formula.
The performance of the inverter depends on the connected battery and vice versa.
When the battery backup time is 3h k 0 6.