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Charging cycle

Ein Ladezyklus beschreibt eine vollständige Entladung und Wiederaufladung eines Akkus — aber schon zwei halbe Ladungen zählen als ein Zyklus. Moderne E-Bike-Akkus halten 500–1.000 Zyklen. Dieser Artikel erklärt, was das konkret bedeutet, wie du die Lebensdauer verlängerst und was nach Ablauf der Zyklen passiert.

What does charging cycle mean?

An e-bike charge cycle refers to the process of charging the e-bike's battery. The charge cycle starts when the battery is empty or almost empty and ends when it is fully charged.

A charging cycle can take different amounts of time depending on the size of the battery, the type of charger and how the e-bike is used. However, a charging cycle usually takes between 3 and 6 hours.

It is important to know that each battery has a limited number of charging cycles before it loses power and eventually needs to be replaced. The number of charging cycles depends on various factors, such as the capacity of the battery, how the e-bike is used and the type of charger.

However, some modern e-bike batteries are designed to have a longer lifespan and a higher number of charge cycles. This is achieved by using high-quality battery cells, advanced charging systems and intelligent battery management systems.

What should you consider when charging an e-bike?

It is also important to charge the e-bike battery correctly to extend its lifespan. This includes using a suitable charger that is designed for the e-bike battery and avoiding overcharging or overheating the battery.

Some e-bike models also come with features that can optimize the charging cycle and extend battery life. These include functions such as automatically turning off the charger after the charging cycle, displaying the battery's charge level, and controlling the charging time to protect the battery from overheating.

Overall, the charging cycle is an important aspect of e-bike use that can affect battery performance and lifespan. By using appropriate chargers, using and caring for the battery correctly, and using modern e-bike models with advanced battery technologies, cyclists can ensure optimal performance and longevity from their battery.


 Tips for battery care and extending the charging cycle

An e-bike battery is an important part of the drive system and contributes to the performance and speed of the e-bike. To ensure that the battery achieves the best possible performance and lifespan, regular care is required.

The following tips will help you to properly care for your e-bike battery:

  • Charge the battery correctly : Only use the charger recommended by the manufacturer and make sure it is suitable for the battery type. Only charge the battery at room temperature and avoid overcharging or overheating the battery. Also turn off the charger after the charging cycle.
  • Do not fully discharge the battery : Do not fully discharge the battery as this may shorten the battery life. It is better to charge the battery when needed rather than draining it completely.
  • Protect the battery from extreme temperatures : Avoid exposing the battery to temperatures that are too hot or too cold, as this may affect the battery's lifespan. Store the battery at room temperature and avoid storing it in temperatures below freezing or above 60 degrees Celsius.
  • Avoid shocks : Shocks can shorten the life of the battery, so it is important to protect the battery from shocks or vibrations. Use a battery protector to protect the battery from shocks and avoid bumpy rides if possible.
  • Clean the battery regularly : Clean the battery regularly with a damp cloth to remove dirt, dust and debris. Do not use harsh cleaning agents or water as this may damage the battery.
  • Store the battery properly : If you do not use the battery for a long period of time, store it at about 50 percent charge and at room temperature. Charge the battery at least every 3 months to avoid over-discharging the battery.
Gran Fondo

Published: March 20, 2023  |  Updated: May 22, 2026

Sources & References

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Häufige Fragen about Charging cycle

Die häufigsten Fragen und Antworten

A charging session is each time the charger is connected. A charging cycle is a complete discharge from 100%—regardless of how many charging sessions were required. Someone who charges from 80% to 100% five times has five charging sessions, but only completed one charging cycle.

Modern e-bike batteries are designed for 500 to 1,000 charging cycles — after which the remaining capacity is still around 60–70% of the original value. With realistic usage (3–4 rides per week, not fully discharged daily), this corresponds to a lifespan of 5 to 8 years.

Not necessarily. The range between 20 and 80% is the most beneficial for cell health. Fully charging before a long trip is advisable—however, storing the battery permanently at 100% accelerates aging. For everyday use and commuting, charging to 80% is sufficient.

No. Lithium-ion batteries should not be charged below 5°C — this causes metal deposits to form in the cells (lithium plating), which permanently reduce capacity and, in extreme cases, can lead to short circuits. First bring the battery to room temperature, then charge it.

Rapid capacity loss indicates aging. First, check how many charging cycles have already been completed (Bosch batteries display this in the Bosch eBike Flow / E-Tube Project). If the remaining capacity is below 70%, replacement is economically advisable. Beforehand, also check: Assisted riding style, increased tire pressure, and riding in the correct gear can improve range by 20–30%.

Only if it is explicitly approved for the system by the manufacturer. Third-party batteries can deliver voltages outside the specification, bypass the BMS, or in the worst case, cause a cell fire. For Bosch, Shimano, and other proprietary systems, only original or certified batteries are recommended.