Complete Guide to Choosing Your Bosch E-Bike Battery
Choosing the right Bosch e-bike battery is essential, as incompatibility can cause performance issues. This guide will help you make the right choice.
Model number: the easiest solution
All Bosch batteries have a unique model number, usually consisting of 9 digits (e.g. 275007530). This number is the most reliable way to identify the exact battery you need.
You can usually find it:
sur l’étiquette de la batterie,
sur la facture d’achat du vélo,
ou parfois directement sur le cadre ou la documentation du VAE.
Enter this number in the Doctibike website search bar to instantly find the corresponding or compatible battery. This method is quick, simple and avoids confusion related to capacity, shape or Bosch system generation.
Need help choosing? Complete our form to receive a personalized recommendation. ↓
Understanding Bosch systems: Smart System vs 2nd generation
Bosch has continuously improved its assistance systems over the years. Today, two main system families coexist: the 2nd generation system and the Smart System.
Bosch 2nd generation e-bike system
This is the most common system found on older e-bikes.
It works with:
displays such as Purion, Intuvia, Kiox or Nyon (1st generation),
PowerPack and PowerTube batteries.
Bosch PowerPack 500 Wh Battery Frame - Active & Performance
- -€125.00
Bosch Smart System
More recent, the Smart System was designed as a fully connected ecosystem.
It works with:
new displays (Kiox 300, Kiox 500, LED Remote, etc.),
a dedicated mobile app,
Smart System-specific batteries. Note: Smart System batteries use a round connector, unlike 2nd generation batteries which have an oval connector.
⚠️ Important: Smart System batteries are not compatible with 2nd generation Bosch bikes, and vice versa, even if the format looks similar. Refer to Bosch’s official guide to identify your system generation.
Bike battery Bosch PowerPack 500 Wh BBP3350 Luggage rack - Smart System
- -€20.83
PowerTube: horizontal or vertical – what’s the difference?
PowerTube batteries are fully integrated into the bike frame and come in two main versions:
PowerTube Horizontal
battery inserted horizontally into the down tube,
usually removed from the side or bottom,
commonly found on open frames or e-MTBs.
PowerTube Vertical
battery inserted vertically, often removed from the bottom,
widely used on modern frames,
excellent visual integration and weight distribution.
The choice between horizontal and vertical PowerTube depends solely on the frame design. The two formats are not interchangeable. If in doubt, contact the Doctibike team.
Choosing your Bosch-compatible battery based on range
Once the correct model is identified, you can choose between different capacities (expressed in Wh). Higher capacity means longer range, but compatibility always comes first.
For city rides and short trips:
PowerPack 300 (up to 70 km)
PowerTube 400 (up to 90 km)
PowerPack 400 (up to 90 km)
Lightweight and compact, ideal for commuting and occasional rides.
For long rides and demanding terrain:
PowerTube 500 (up to 120 km)
PowerPack 500 (up to 120 km)
PowerTube 625 (up to 150 km)
The Doctibike experts’ opinion
Doris – Customer Service & Product Coordinator at Doctibike
"Important: PowerTube 625 batteries are longer than 400 Wh and 500 Wh models. Switching from 625 Wh to 400 or 500 Wh is possible with an extension. However, installing a 625 Wh battery on a bike originally equipped with a 400 or 500 Wh battery is not possible without it."
Always ensure the battery matches its mounting position (frame or rear rack). A frame-mounted battery offers better weight distribution.
Doctibike also offers compatible chargers and fast chargers for shorter charging times. Choosing Doctibike means choosing a French specialist offering reliable lithium batteries and expert after-sales support.
