1. What is Electric Bike Battery Capacity?

Electric bike battery capacity is typically measured in watt-hours (Wh) and represents the total energy storage of the battery. It's calculated by multiplying the battery's voltage by its amp-hour rating.

2. How Does the Calculator Work?

The calculator uses the simple equation:

Where:

• \( Voltage \) — Battery nominal voltage (V)
• \( Ah \) — Battery amp-hour rating (Ah)

Explanation: This calculation gives the total energy capacity in watt-hours (Wh), which indicates how much energy the battery can store.

3. Importance of Battery Capacity

Details: Battery capacity determines the range of your electric bike. Higher capacity means longer distance per charge, but also typically means heavier and more expensive batteries.

4. Using the Calculator

Tips: Enter the voltage and amp-hour rating as specified on your battery. Common e-bike batteries are 36V or 48V with Ah ratings between 10Ah and 20Ah.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical capacity for e-bike batteries?
A: Most e-bike batteries range between 300Wh and 700Wh, with high-end models reaching 1000Wh or more.

Q2: How does capacity relate to range?
A: As a rough estimate, 10Wh will power about 1 km of riding, depending on terrain, rider weight, and assist level.

Q3: Can I compare batteries just by capacity?
A: While capacity is important, also consider battery chemistry (Li-ion is best), weight, and expected charge cycles.

Q4: How long will my battery last?
A: Quality e-bike batteries typically last 500-1000 full charge cycles before capacity drops to 80% of original.

Q5: Should I always get the highest capacity battery?
A: Not necessarily - higher capacity means more weight and cost. Choose based on your typical riding distance needs.