UPS Battery Size Calculator
Calculate the appropriate UPS battery size for your system based on load and required backup time.
UPS Battery Size Specifications
List of the Best UPS Battery:
How to Use this UPS Battery Size Calculator?
This tool helps you calculate the required UPS battery size in VA. You'll need the following information:
- Load (W): The total power consumption of your devices (in watts) that need backup power.
- Required Backup Time (Hours): The desired amount of time (in hours) you want the UPS to supply power during an outage.
- Efficiency Factor: The efficiency of your UPS system:
- 85%: Typical real-world conditions
- 90%: Good operating conditions
- 95%: Optimal conditions
- 100%: Theoretical maximum (not recommended for calculations)
Understanding UPS Battery Size
The battery size of a UPS is determined by the load and desired runtime. The general formula is:
- Formula: Battery Size (VA) = Load (W) × Required Runtime (Hours) ÷ Efficiency Factor
- Efficiency Impact: The efficiency factor accounts for losses in the UPS system and reduces the actual available power from the battery.
Factors Affecting UPS Battery Size
Several factors can impact the battery size you need:
- Battery Age: Older batteries may have reduced capacity, requiring a larger UPS battery for the same backup time.
- Load Variability: If the load fluctuates significantly, you may need to account for peak load scenarios.
- Temperature Effects: Extreme temperatures (both hot and cold) can affect battery efficiency and lifespan.