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    Understanding Battery Capacity: Finding the Right Balance for Your Ebike

    August 01, 2024 4 min read

    Understanding Battery Capacity: Finding the Right Balance for Your Ebike - Electrified

    Choosing the right battery capacity for your ebike can be a daunting task, especially with so many factors to consider. While Tony from down the street might have suggested that 25Ah is plenty, it's important to understand the nuances to make an informed decision. This article will explore the pros and cons of going low or high in battery capacity and provide a detailed table to guide your choices.

    Pros and Cons of Different Battery Capacities

    Low Capacity Batteries (e.g., 10Ah - 15Ah)

    Pros:

    • Lightweight: Easier to handle and install.
    • Cost-Effective: Generally cheaper than higher capacity batteries.
    • Quick Charging: Shorter charging times.

    Cons:

    • Limited Range: Shorter travel distances per charge.
    • Lower Power Output: May not provide sufficient power for high-demand setups.
    • Frequent Charging: More frequent need to recharge, which can be inconvenient.

    High Capacity Batteries (e.g., 25Ah - 30Ah)

    Pros:

    • Extended Range: Longer travel distances per charge.
    • Higher Power Output: Suitable for high-demand setups, such as powerful motors.
    • Less Frequent Charging: Less need to recharge frequently, providing convenience.

    Cons:

    • Heavier: More weight, which can affect bike handling and performance.
    • Higher Cost: Generally more expensive.
    • Longer Charging Time: Takes longer to recharge fully.

    Voltage Systems and Their Impact Hub Motor

    The voltage of your battery system also plays a crucial role in determining the performance of your ebike. Here’s a detailed table to help you understand the top speeds, average continuous current, recommended battery capacities, and estimated range for various voltage systems and motor wattages.

    Voltage Motor Wattage Top Speed (km/h) Avg. Continuous Current (A) Recommended Battery Capacity (Ah) Estimated Range (km)
    36V 250W 25 7 10-15 40-60
    350W 30 9 10-15 35-55
    500W 35 14 15-20 30-50
    750W 40 20 20-25 25-45
    1000W 45 28 20-25 20-40
    48V 250W 30 5.2 10-15 50-70
    350W 35 7.3 10-15 45-65
    500W 40 10.4 15-20 40-60
    750W 45 15.6 20-25 35-55
    1000W 50 20.8 20-25 30-50
    1500W 55 31.3 25-30 25-45
    52V 250W 35 4.8 10-15 55-75
    350W 40 6.7 10-15 50-70
    500W 45 9.6 15-20 45-65
    750W 50 14.4 20-25 40-60
    1000W 55 19.2 20-25 35-55
    1500W 60 28.8 25-30 30-50
    2000W 65 38.5 25-30 25-45
    3000W 70 57.7 30-35 20-40
    60V 250W 40 4.2 10-15 60-80
    350W 45 5.8 10-15 55-75
    500W 50 8.3 15-20 50-70
    750W 55 12.5 20-25 45-65
    1000W 60 16.7 20-25 40-60
    1500W 65 25 25-30 35-55
    2000W 70 33.3 25-30 30-50
    3000W 75 50 30-35 25-45
    72V 250W 45 3.5 10-15 70-90
    350W 50 4.9 10-15 65-85
    500W 55 6.9 15-20 60-80
    750W 60 10.4 20-25 55-75
    1000W 65 13.9 20-25 50-70
    1500W 70 20.8 25-30 45-65
    2000W 75 27.8 25-30 40-60
    3000W 80 41.7 30-35 35-55
    96V 250W 50 2.6 10-15 80-100
    350W 55 3.6 10-15 75-95
    500W 60 5.2 15-20 70-90
    750W 65 7.8 20-25 65-85
    1000W 70 10.4 20-25 60-80
    1500W 75 15.6 25-30 55-75
    2000W 80 20.8 25-30 50-70
    3000W 85 31.3 30-35 45-65
    5000W 95 52.1 30-35 35-55

    Battery Capacity Required for Different Distances

    Voltage Motor Wattage Capacity for 30 km (Ah) Capacity for 50 km (Ah) Capacity for 80 km (Ah)
    36V 250W 5.25 8.75 14
    350W 6.75 11.25 18
    500W 10.5 17.5 28
    750W 15 25 40
    1000W 21 35 56
    48V 250W 3.75 6.25 10
    350W 4.95 8.25 13.2
    500W 7.2 12 19.2
    750W 10.8 18 28.8
    1000W 14.4 24 38.4
    1500W 21.6 36 57.6
    52V 250W 3.5 5.8 9.3
    350W 4.7 7.8 12.5
    500W 6.75 11.25 18
    750W 10.1 16.8 26.9
    1000W 13.5 22.5 36
    1500W 20.25 33.75 54
    2000W 27 45 72
    3000W 40.5 67.5 108
    60V 250W 3 5 8
    350W 4.2 7 11.2
    500W 6 10 16
    750W 9 15 24
    1000W 12 20 32
    1500W 18 30 48
    2000W 24 40 64
    3000W 36 60 96
    72V 250W 2.6 4.4 7.2
    350W 3.6 6 9.6
    500W 5.2 8.6 13.8
    750W 7.8 13 20.8
    1000W 10.4 17.3 27.7
    1500W 15.6 26 41.6
    2000W 20.8 34.7 55.5
    3000W 31.2 52 83.2
    96V 250W 2 3.3 5.2
    350W 2.8 4.6 7.4
    500W 4 6.7 10.8
    750W 6 10 16
    1000W 8 13.3 21.3
    1500W 12 20 32
    2000W 16 26.7 42.7
    3000W 24 40 64
    5000W 40 66.7 106.7

     

    Battery Capacity Required for Different Distances (Mid-Drive Motors)

    Voltage Motor Wattage Capacity for 30 km (Ah) Capacity for 50 km (Ah) Capacity for 80 km (Ah)
    36V 250W 4.5 7.5 12
    350W 5.7 9.5 15.2
    500W 8.4 14 22.4
    750W 12 20 32
    1000W 16.8 28 44.8
    48V 250W 3.3 5.5 8.8
    350W 4.4 7.3 11.7
    500W 6.6 11 17.6
    750W 9.9 16.5 26.4
    1000W 13.2 22 35.2
    1500W 19.8 33 52.8
    52V 250W 3 5 8.3
    350W 4 6.7 10.7
    500W 6 10 16
    750W 9 15 24
    1000W 12 20 32
    1500W 18 30 48
    2000W 24 40 64
    3000W 36 60 96
    60V 250W 2.7 4.5 7.2
    350W 3.5 5.8 9.3
    500W 5 8.3 13.3
    750W 7.5 12.5 20
    1000W 10 16.7 26.7
    1500W 15 25 40
    2000W 20 33.3 53.3
    3000W 30 50 80
    72V 250W 2.2 3.7 5.9
    350W 2.9 4.8 7.7
    500W 4.3 7.2 11.5
    750W 6.5 10.8 17.3
    1000W 8.6 14.3 22.9
    1500W 12.9 21.5 34.4
    2000W 17.2 28.7 45.9
    3000W 25.8 43 68.8
    96V 250W 1.7 2.8 4.5
    350W 2.3 3.8 6.1
    500W 3.3 5.5 8.8
    750W 5 8.3 13.3
    1000W 6.7 11.1 17.8
    1500W 10 16.7 26.7
    2000W 13.3 22.2 35.6
    3000W 20 33.3 53.3
    5000W 33.3 55.6 88.9

    Final Thoughts

    Choosing the right battery capacity for your mid-drive ebike is essential for ensuring you get the range you need. Use this table as a guideline to help determine the appropriate battery capacity based on your desired travel distance, motor wattage, and voltage system.

    Remember, it’s not just about the numbers—consider your typical riding conditions, terrain, and personal preferences to find the perfect setup for your ebike.

    Happy riding, and always FEEL THE RUSH!

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