No matter how you refer to it—e-bike, electric bicycle, eBike, electric bike, or E-bike—one thing is clear: the e-bike is revolutionizing the transportation industry. More and more people are purchasing and using electric bikes as a primary mode of transport. When shopping for an e-bike, one of the most critical considerations is range. How far can the e-bike you're eyeing actually go on a single charge?

The longest-range e-bike currently available is from Delfast Bikes. This model holds the Guinness World Record for the longest range on a single charge, clocking in at 228 miles. With the latest software update on the new Top 3.0i model, the range has been extended to an incredible 232 miles. But how realistic is this number in everyday riding conditions? Can you gauge an e-bike's potential range simply by looking at its listed volts and amp hours?

The range of an e-bike depends on several factors, including the battery, controller, motor, and other components. These elements collectively determine your speed, the level of pedal assist, and even provide an estimated range based on those parameters. Ultimately, though, the single most important factor in determining how far an e-bike can go is the battery capacity—measured in volts, watts, and amp hours.

Voltage of the Battery

The first key characteristic to examine is the voltage of the battery. This is typically expressed in volts (V). Most manufacturers offer e-bikes with either 36V or 48V batteries. While these batteries are cheaper and widely available, they come with limitations. A lower voltage battery provides less power and results in slower speeds, especially on inclines. If you’re looking for a powerful and speedy e-bike, it’s better to opt for models equipped with higher voltage batteries.

Batteries with 52V are much more powerful, offering both greater speed and efficiency. Efficiency is crucial for maximizing range. However, as we’ll explore further, other factors play a role in determining the range of an e-bike. Although 52V batteries are pricier, the increased voltage ensures a smoother and more enjoyable ride due to the enhanced power and speed.

Investing in an e-bike with a high-voltage battery is worth the initial expense. Delfast uses a 72V Lithium-ion battery in their premium TOP 3.0i model. This high voltage battery not only makes the Delfast e-bike the fastest on the market but also the longest-range. The battery’s size allows for the use of a 3,000W motor, resulting in unparalleled performance.

Amp-Hour Value of the Battery

If voltage determines the speed and power of an e-bike, what truly defines its range? The answer lies in another parameter known as amp-hours (Ah). When the motor operates, it draws electricity from the battery, measured in amperes (Amps or A). The higher the amp value, the stronger the flow of electrons in the motor coils. Both voltage and current contribute to the motor’s power, which is calculated as wattage (W), the product of volts and amps.

Amp-hours refer to the total number of amperes the battery can sustain over an hour. Common values range from 10Ah to 20Ah. Essentially, this measures the battery’s capacity. A 10Ah battery can maintain 20A for half an hour or 5A for two hours. The larger the capacity, the farther the e-bike can travel on a single charge.

Batteries for Long-Range e-Bikes

For an e-bike to have a long range, it requires a high-capacity battery. Achieving this isn’t always straightforward. High-capacity batteries are bulkier and significantly heavier. Standard Lithium-ion batteries weighing 6-8 lbs generally offer a range of around 20 miles—far from the ideal long-range e-bike. Additionally, if your e-bike relies solely on throttle mode, without pedaling assistance, the range will be further reduced.

A long-range e-bike typically features a battery with at least 20Ah and 52V, enabling a range of about 100 miles with a 1,000W motor. New e-bike buyers should aim for the highest voltage and capacity within their budget. Three critical aspects to consider include:

• Size: High-capacity batteries are larger and more cumbersome. Ensure your chosen frame and bike can accommodate it.
• Weight: High-capacity batteries are heavier. Consider this if you’ll need to carry your e-bike up stairs.
• Price: High-capacity batteries are more expensive. Depending on your intended use, a high-capacity battery may not be essential. For short commutes, a standard battery with 10Ah to 20Ah might suffice.

The King of Range

Our long-range e-bike, the TOP 3.0i, doesn’t compromise on battery quality. It uses a 72V 48Ah Lithium-ion battery, surpassing the specifications of any other e-bike battery on the market. This battery enables a top speed of 50 mph and an impressive range of 200 miles.

If you’re seeking an e-bike capable of delivering top performance under virtually any condition, the TOP 3.0i is the ideal choice. It performs exceptionally well off-road as a mountain e-bike, allowing you to cover vast distances across rural landscapes. It’s the perfect commuter for those who prioritize long-range capabilities. Whether transitioning from city streets to trails or balancing work with weekend adventures, the TOP 3.0i excels in versatility.

Related articles:

• How Fast Can Your E-Bike Go?
• How to Calculate the Range of Your Electric Bike
• Tips for Taking Care of Your Battery