Electric bicycles, or e-bikes, have transformed how we think about cycling. These bikes combine traditional pedaling with electric assistance, making them ideal for both casual rides and more demanding terrains. Whether you're commuting to work or exploring a trail, understanding the technical specs of an e-bike is essential for making an informed purchase.

At the heart of every e-bike are three key electrical parameters: volts, watts, and amp hours. These measurements determine the performance, range, and efficiency of your ride. While they may sound complex, they’re actually quite straightforward once you understand what they mean and how they affect your experience on the road.

The motor is the core component that provides power, while the battery stores energy. Together, they define the bike's capabilities. But how do these numbers translate into real-world performance? Let’s break down each one so you can choose the best e-bike for your needs.

What Are Watts?

Watts (W) measure the power output of the e-bike motor. The higher the wattage, the more power the motor delivers, which translates into faster speeds and better hill-climbing ability. Most e-bikes use motors ranging from 250 to 500 watts. However, it's important to distinguish between continuous and peak watt ratings.

• Continuous Watt Rating: This is the sustained power the motor can provide under normal conditions.
• Peak Watt Rating: This represents the maximum power the motor can deliver in short bursts, such as when climbing steep hills.

Understanding this distinction helps you choose a motor that suits your riding style. If you frequently tackle hills or need extra speed, a higher watt rating will make a noticeable difference.

What Are Volts?

Voltage (V) refers to the electrical pressure that drives current through the system. In e-bikes, common voltages are 36V and 48V. Higher voltage means more power can be delivered with less current, which reduces heat and allows for thinner wiring and smaller components.

For example, a 36V motor drawing 10A produces 360W of power. A 48V motor with the same current would produce 480W. This makes high-voltage systems more efficient and easier to manage, especially for long-distance rides.

What Are Amp Hours?

Amp Hours (Ah) measure the capacity of the battery. It tells you how much charge the battery can hold over time. A 10Ah battery can supply 10A for one hour or 1A for ten hours. However, Ah alone isn’t enough to compare battery performance—voltage must also be considered.

To get a full picture, convert Ah to Watt-Hours (Wh) by multiplying it by the battery’s voltage. For instance, a 36V 10Ah battery has 360Wh of capacity. This gives you a clearer idea of how far you can go on a single charge.

Delfast: A Leader in E-Bike Technology

Delfast stands out in the e-bike market with its advanced battery technology. Their bikes feature high-capacity batteries like the 72V 48Ah model, which equals 3456Wh. This level of power ensures long-range performance and durability, with up to 3000 charge cycles—far exceeding the typical 1000 found in most e-bikes.

Conclusion

When choosing an e-bike, consider the motor power (watts), battery voltage, and capacity (amp hours). These factors determine how fast, far, and efficiently your e-bike performs. With the right combination, you can enjoy a smooth, powerful ride that meets your lifestyle and needs.