1. What is Lithium Battery Runtime?

The lithium battery runtime is the estimated time a battery can power a device before needing recharge. It depends on the battery's capacity, voltage, and the power consumption of the connected load.

2. How Does the Calculator Work?

The calculator uses the runtime formula:

Where:

• Lithium Capacity — Battery capacity in amp-hours (Ah)
• Voltage — Battery nominal voltage in volts (V)
• Load — Power consumption of device in watts (W)

Explanation: The formula converts battery capacity to watt-hours (Ah × V = Wh) then divides by load to get runtime in hours.

3. Importance of Runtime Calculation

Details: Accurate runtime estimation helps in system design, battery sizing, and ensuring uninterrupted power supply for critical applications.

4. Using the Calculator

Tips: Enter battery capacity in Ah, voltage in V, and load in W. All values must be positive numbers for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for all lithium batteries?
A: This provides an estimate. Actual runtime may vary based on battery age, temperature, discharge rate, and other factors.

Q2: What's typical capacity for lithium batteries?
A: Common capacities range from 2Ah (small packs) to 100Ah (large batteries). Electric vehicle batteries can be much larger.

Q3: Why is voltage important in the calculation?
A: Voltage determines how much energy is stored per amp-hour. Higher voltage means more energy at same capacity.

Q4: How does load affect runtime?
A: Higher loads drain the battery faster. Some batteries may have reduced capacity at very high discharge rates.

Q5: Can I use this for battery banks?
A: Yes, for series connections sum voltages, for parallel sum capacities. Then use total values in the calculator.