How Are Electric Bikes Powered?

Electric bikes, also known as e-bikes, have been gaining popularity in recent years, and it’s no wonder why. 

They are faster and easier to start, which means you won’t have to waste time getting going when it’s time to leave. Moreover, they offer a greener, more efficient way to get around, and are just a blast to ride. But how are they powered?

Well, that’s what this blog will discuss.

How Are Electric Bikes Powered?

Electric bikes are powered by a motor, which is usually located in the rear wheel and is used to help the rider with their pedaling effort. 

The motor is powered by a battery, which can be located in the frame of the bike, underneath or behind the seat, or in a separate battery pack attached outside the frame.

For a better understanding, let’s take a detailed look at the three main components of an e-bike: the motor, the battery, and the pedal-assist system.

Motor

The motor is the heart of the e-bike, and it’s what makes it move. It’s also what makes an electric bike easier to ride uphill than a normal one. 

E-bike motors are either hub motors or mid-drive motors. Hub motors are located in the front or rear wheel and provide power to that wheel only, while mid-drive motors are located in the middle of the bike and are fully integrated with the bike’s drivetrain. 

The output of a motor is measured in watts, and can range from anywhere from 250W to 1000W, or even more. For instance, the Engwe EP-2 Pro has a 750W motor that’s more than enough for it to hit a speed of 28mph.

Battery

E-bike motors are powered by rechargeable batteries, and they come in a variety of voltages and amp-hours. The former impacts acceleration, while the latter determines the range. 

The most common voltages are 36V and 48V, but there are also 60V and even 72V batteries out there. The Ah usually range around 10-20Ah, but there can be exceptions too.

E-bike batteries come in a variety of shapes and sizes, but the most common type is a lithium ion battery. 

Lithium ion batteries are light, powerful, and long-lasting, making them ideal for e-bikes. 

PAS System

Electric bikes also have a pedal-assist (PAS) system, which means the motor will give you a boost when you pedal. This is great for hills or long rides. 

Most electric bikes have both pedal-assist and throttle modes, with the latter allowing you to move without any pedaling at all. When using the throttle mode, the rider can control the speed from a twist or thumb throttle. 

The biggest benefit of these electric assist systems is that you don’t have to break a sweat while riding your bike. This can be great for people who find sweating unpleasant and would prefer to avoid it, especially when riding in summer. 

Final Words

How far an electric bike can go on a single charge depends on the size of the battery, the efficiency of the motor, and the terrain conditions. While the speed mainly depends on battery voltage and motor output!