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Ebike Battery Life Calculator Digikey

Battery Life Equation:

\[ \text{Life (hours)} = \frac{\text{Capacity (Ah)}}{\text{Current (A)}} \]

Ah
A

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1. What is the Ebike Battery Life Calculator?

The Ebike Battery Life Calculator estimates how long an e-bike battery will last based on its capacity and the current draw of the motor. This helps riders plan their trips and understand their battery's performance.

2. How Does the Calculator Work?

The calculator uses the basic battery life equation:

\[ \text{Life (hours)} = \frac{\text{Capacity (Ah)}}{\text{Current (A)}} \]

Where:

Explanation: The equation divides the total energy storage (capacity) by the rate of energy consumption (current) to determine runtime.

3. Importance of Battery Life Calculation

Details: Knowing your e-bike's expected battery life helps prevent being stranded with a dead battery and allows for better trip planning.

4. Using the Calculator

Tips: Enter battery capacity in Ah and motor current draw in A. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for real-world riding?
A: This provides theoretical maximum. Real-world factors like terrain, speed, and temperature will reduce actual battery life.

Q2: Where can I find my battery's capacity?
A: Capacity is usually printed on the battery label, specified in amp-hours (Ah) or watt-hours (Wh).

Q3: How do I determine my motor's current draw?
A: Check your motor specifications or use a wattmeter to measure actual current during riding.

Q4: Does battery age affect the calculation?
A: Yes, older batteries may have reduced capacity. Consider multiplying the rated capacity by 0.8-0.9 for aged batteries.

Q5: Can I use this for other battery-powered devices?
A: Yes, the same calculation works for any DC system where you know the capacity and current draw.

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