Run Time Formula:
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The Deep Cycle Battery Run Time calculation estimates how long a battery will last powering a UPS (Uninterruptible Power Supply) system. It's crucial for planning backup power during outages.
The calculator uses the following equation:
Where:
Explanation: The equation calculates total battery energy (Ah × V) and divides by power consumption (W) to determine runtime in hours.
Details: Accurate run time estimation helps ensure critical systems remain operational during power outages and assists in proper battery sizing.
Tips: Enter battery capacity in Ah, battery voltage in volts, and UPS power consumption in watts. All values must be positive numbers.
Q1: What's the difference between deep cycle and regular batteries?
A: Deep cycle batteries are designed for prolonged discharges and frequent recharging, unlike starter batteries meant for short, high-current bursts.
Q2: How accurate is this calculation?
A: This provides a theoretical maximum. Actual runtime may be 10-30% less due to inefficiencies, temperature, and battery age.
Q3: Should I use nominal or actual voltage?
A: Use nominal voltage (e.g., 12V for a 12V battery) unless you know the exact average voltage during discharge.
Q4: What's a typical runtime for UPS systems?
A: Most home UPS systems provide 5-30 minutes, while critical systems may need several hours of runtime.
Q5: How can I increase my UPS runtime?
A: Options include adding more batteries in parallel, using higher capacity batteries, or reducing the load on the UPS.