What is the battery life of an electric bike?

The importance of choosing the right battery for an electric bike

If you're looking for an electric bike battery, we exclusively sell lithium-ion models. These are the highest-performing batteries on the market today, offering excellent energy density, a long lifespan, and reduced weight. But what range can you expect based on your battery capacity? And how do you choose the ideal model for your use? Here's a detailed guide.

LVRCycles: quality batteries for all cyclists

LVRCycles offers a wide range of electric bike batteries to suit every need. Whether you're an urban cyclist, a passionate mountain biker, or a long-distance tourer, we'll help you choose the perfect battery. Our advisors are available to guide you toward the best option based on your bike type, your journeys, and your expectations in terms of range and performance.

Do not hesitate to contact us for personalized advice and to guarantee an optimal choice that will perfectly meet your requirements.

Comparison of autonomy according to battery capacity

The range of an electric bike depends on several factors: battery capacity, motor power, route profile (elevation, terrain type), weather conditions and rider weight. To give you an idea of ​​performance depending on battery capacity, here is an estimate of the maximum possible distances under optimal conditions:

These figures are indicative and may vary depending on your assistance mode and driving conditions.

***** Did you know? *****
An additional battery, called Range Extender, can significantly increase autonomy by adding an additional 160 to 300 Wh!

Weight vs. Endurance: Which Compromise Should You Choose?

One of the key considerations when choosing a battery is the weight versus endurance ratio. A larger battery offers more range, but it also adds weight to your bike. Here are the pros and cons depending on the type of bike:

1. City bike: A 400 to 500 Wh battery is often sufficient for daily commuting. Lightweight and maneuverable, your bike will remain easy to park and transport.
2. Electric mountain bike: Choose a battery of at least 600 Wh, as technical trails and climbs require more power.
3. Electric road bike: A lightweight battery (250-400 Wh) with a Range Extender is ideal for not weighing down the bike while still providing sufficient range.
4. Electric cargo bike: These models, often used to transport heavy loads, require at least 720 Wh for optimal autonomy.

***** Trick *****
Before buying an electric bike battery, compare not only the range, but also its charging time and compatibility with your charger.

Lifespan of an electric bike battery

The lifespan of a lithium-ion battery for an electric bike is generally between 500 and 1,000 charge cycles. This means that with a full charge per day, a battery can last between 2 and 5 years before its capacity significantly reduces. However, several factors influence this longevity:

1. Cell quality: Batteries from reputable brands ( Bosch , Shimano , Yamaha) tend to age better.
2. Use and Care: Avoiding deep discharges and extreme temperatures prolongs life.
3. Storage: A battery stored at 40-60% charge in a temperate environment lasts longer.

***** Did you know? *****
After 500 charge cycles, a battery can lose about 20% of its initial capacity. After 1,000 cycles, this loss can reach 40%.

Repair or buy a new battery?

Many cyclists wonder whether it's better to repair a faulty battery or buy a new one. Is repair possible? Yes, but under certain conditions.

Is it profitable to have your battery repaired?

1. Cell Replacement: A battery can be reconditioned by changing its internal cells. This typically costs between €150 and €400 depending on the capacity and brand.
2. Electronic Problems: If the BMS (Battery Management System) board is damaged, repair is often more complex and may not be cost-effective.
3. Safety: An improperly repaired battery can pose a fire hazard. Call qualified professionals.

Conclusion: If your battery is new and losing its battery life, reconditioning it may be a good solution. However, for a battery that's more than 5 years old, buying a new model is often preferable.

By choosing the right battery and adopting the right maintenance habits, you will optimize the autonomy and lifespan of your electric bike . If you still have questions, consult our catalog of electric bike batteries and find the one that suits your use!

For personalized advice, contact our LVRCycles team and make the right choice for your electric bike!

LVRCycles: Your trusted partner for over 10 years

For over 10 years, LVRCycles has established itself as a key player in the world of electric bicycles. Each year, we have the privilege of supporting thousands of cyclists in their passion, offering them high-quality electric-assist bicycles (EABs). Our commitment to excellence and our recognized expertise make us a trusted partner for all two-wheel enthusiasts.

The electric bicycle market in France: rapid growth

The French e-bike market has experienced impressive growth over the past decade. In 2017, 225,000 e-bikes were sold, marking a notable increase over previous years. This trend has continued, reaching 738,000 units in 2022. Although 2023 saw a slight decline with 671,000 e-bikes sold, e-bikes now represent 30% of total bicycle sales in France, confirming their central role in sustainable mobility. Source: ​

At LVRCycles, we are proud to contribute to this dynamic by offering our customers reliable and high-performance products, adapted to their specific needs. Our dedicated team is available to advise and assist you in choosing the ideal electric bike.

Understanding how an electric bike battery and motor work

An electrically assisted bicycle (EAB) combines the cyclist's effort with the energy provided by an electric motor, powered by a rechargeable battery . This synergy makes pedaling easier, especially on difficult terrain or during long journeys.

The main components of an e-bike:

• The battery: It stores the energy needed to operate the motor. E-bike batteries are generally lithium-ion batteries, valued for their energy density and durability. A battery's capacity, expressed in watt-hours (Wh), determines the bike's range. For example, a 500 Wh battery can provide a range of up to 100 km, depending on usage conditions.
• The motor: It converts electrical energy into mechanical energy to assist pedaling. The motor's power, expressed in watts (W), indicates the motor's capacity to provide effort. In Europe, legislation limits the power of e-bike motors to 250 W, with electric assistance up to 25 km/h.

Understanding units of measurement:

1. Volt (V): Measures the electrical voltage of the battery. A higher voltage can allow for better motor performance, but must be compatible with the specifications of the e-bike.
2. Watt (W): Indicates the motor's power. Higher power provides more assistance, useful for hilly terrain or carrying heavy loads.
3. Watt-hour (Wh): Represents the total energy capacity of the battery, directly influencing the autonomy of the VAE.

Understanding the difference between volts and watts

In electricity, the terms volt and watt refer to distinct but interconnected quantities. Understanding their difference is essential for understanding how electrical devices, particularly electric bicycles (e-bikes), work.

Volt (V): the measurement of electrical voltage

The volt is the unit of measurement for electrical voltage, also called potential difference. It represents the force that pushes electrons through a conductor, similar to the pressure of water in a pipe. The higher the voltage, the greater the potential to move electrons.

The watt (W): the measurement of electrical power

A watt is the unit of measurement for electrical power, that is, the amount of energy consumed or produced by a device in one second. It is calculated by multiplying the voltage (in volts) by the current (in amperes). Thus, a device operating at a voltage of 230 volts with a current of 2 amperes consumes a power of 460 watts.

Relationship between volts and watts

The relationship between volts and watts is given by the formula:

Power (W) = Voltage (V) × Current (A) \text {Puissance (W)} = \text {Tension (V)} \times \text {Courant (A)} Power (W) = Voltage (V) × Current (A)

This equation shows that for a given power, an increase in voltage reduces the intensity of the current required, and vice versa.

Application to electric bicycles

In the context of e-bikes, battery voltage (expressed in volts) influences the power the motor can deliver. A higher voltage can result in better motor performance, provided all system components are compatible with that voltage. Motor power, expressed in watts, determines the assistance provided to the rider. However, in Europe, legislation limits e-bike motor power to 250W, with electric assistance up to 25 km/h.

In short, the volt measures the force that drives the electric current, while the watt measures the amount of energy used or produced by a device. In an e-bike, these two units play a key role in the performance and efficiency of the electrical system.

Ecological issues linked to electric bikes:

Electric bikes offer an environmentally friendly alternative to internal combustion vehicles. According to ADEME, an electric bike emits approximately 13g of CO₂e per kilometer, compared to 271g for an internal combustion engine car. But be careful with waste; join the movement: https://quefairedemesdechets.ademe.fr/dechet/velo-a-assistance-electrique-vae/

However, the manufacture of batteries and motors contributes to greenhouse gas emissions. The production of a battery emits approximately 20 kg of CO₂e, while that of a motor emits 37 kg. See the Polytechnique study: https://www.polytechnique-insights.com/tribunes/energie/quel-bilan-carbone-pour-les-velos-electriques/

To minimize environmental impact, it is essential to properly recycle end-of-life batteries and to favor renewable energy sources for their recharging.

In short, although electric bikes involve ecological considerations linked to their manufacture, their daily use remains an environmentally friendly option, promoting sustainable mobility.

FAQ – Electric bike autonomy and batteries

Electric bike and accessories catalog