UPS Parameters

W
Total power draw of all connected devices (e.g., Desktop PC ≈ 200W)
V
Nominal voltage of each battery (typical: 12V)
Ah
Amp-hour rating of each battery (typical: 7Ah)
Total batteries in series or parallel (typical: 2 for 24V systems)
%
Typical range: 80-90% (use 85% if unsure)

Results

-
- Wh
- Wh

Tips for UPS Usage

  • Regular battery testing is recommended every 3-6 months
  • Keep batteries at room temperature for optimal performance
  • Plan for 25% more capacity than calculated for future expansion

How It's Calculated

The runtime calculation considers battery voltage, capacity, quantity, and inverter efficiency. The formula used is:

1. Total Energy (Wh) = Battery Voltage × Capacity × Number of Batteries

2. Adjusted Energy = Total Energy × (Efficiency ÷ 100)

3. Runtime (hours) = Adjusted Energy ÷ Load Power