How To Calculate Inverter Battery Back up Time ?
94% of people who own Home Inverter battery would ask this question to their battery dealers and service provider at least once in their life time .Don’t worry readers, now I will let you know that simple formula! back up time inverter battery= battery volt x battery ah rating / total watt of load If a Person use 1 ceiling Fan + 2 Tube Light + 2 (15watts) CFL simultaneously with 150 AH battery, then the backup time will be calculated as 1 ceiling Fan = 70 watts 2 Tube light = 70 watts 2x 15watts CFL= 30 watts Total = 170 watts Back-up time of 150 AH Battery = 12 * 150 / 170 = 10.58 hours (approximately) this is not accurate because power consumption of old fans and regulator speed etc