Load Calculator

Add appliances or use presets. Calculator shows total power, daily energy, inverter sizing and battery Ah required for the backup hours you choose.

Add Appliance
Quick presets:
ApplianceW (each)QtyHours/dayTotal W
Items: 0
Assumptions & Settings
Adjust for accurate sizing
Total Continuous Load
0 W
Daily Energy
0 Wh / day
Recommended Inverter (VA)
0 VA
Suggested: Peak factor 1.2 × total W
Required Battery Capacity
0 Ah
Calculation details
No appliances added.
Tip: change assumptions to suit inverter/battery spec.
How calculations work (summary)
  1. Daily energy (Wh) = sum(each appliance Watt × qty × hours/day).
  2. Inverter VA ≈ total continuous watts × 1.2 (to allow for start/peak loads).
  3. Battery Ah at chosen voltage = (Total Watts × Backup Hours) ÷ (Battery Voltage × DoD × Inverter Efficiency).

Prakash Battery Udyog, founded in 1982, is a premier manufacturer, exporter, and supplier of lead-acid batteries, renowned for setting the standard in the Indian battery industry.

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