Connect a PV module
A compatible PV module is connected directly to the LiON Box Sun. The PV module is not included.
LiON Sun
Compact Solar Charging Station for E-Bikes and E-Scooters
Use existing canopies for self-sufficient direct charging:
Connect a PV module, store solar energy, and expand to two charging points as needed with the LiON Box Sun Sub.
Compact Solar Charging Station for E-Bikes and E-Scooters
Making Solar Energy Directly Usable
The LiON Box Sun combines an existing PV module with battery storage and direct-charging technology in a compact system.
The solar energy generated is stored in the LiON Box Sun and made available directly via the LiON Splitter for charging e-bikes or e-scooters. A grid connection is not required for operation.
Note: The solar panel, shelter, and bicycles are not included in the scope of delivery.
Modular design, expandable to two charging points
No second PV module is required to expand to two direct charging points. The LiON Box Sun collects the solar energy and transmits it to the LiON Box Sun Sub via the connecting cable.
A compatible PV module is connected directly to the LiON Box Sun. The PV module is not included.
The LiON Box Sun collects the generated energy and stores it in the built-in battery storage system.
The LiON Box Sun Sub is connected directly to the LiON Box Sun using the provided connection cable.
The LiON Box Sun Sub adds another battery storage unit and a second direct charging point to the system.
The LiON Box Sun handles power distribution within the system. This allows an existing PV module to be used for up to two direct charging points.
No second PV module requiredLiON Box Sun and Sun Sub
The LiON Box Sun forms the basis of the system. For a second direct charging point, it is supplemented by the LiON Box Sun Sub. Both units have their own battery storage and are powered by solar energy via a shared PV module.
Solar Charging Station
The self-sufficient base station combines a compatible PV module with battery storage and direct-charging technology. It provides a direct-charging point and serves as the foundation for the optional expansion with the LiON Box Sun Sub.
Expand Modularly
The LiON Box Sun Sub expands the base station with a second battery storage unit and an additional direct charging point. It is connected to the LiON Box Sun via the connection cable and does not require its own PV connection.
The System Principle
One PV module. Two battery storage systems. Up to two direct charging points.
The LiON Box Sun handles the connection to the PV module. The LiON Box Sun Sub is connected via the connection cable.
Direct-Load Technology
With ONgineer 's direct-charging technology, e-bikes or e-scooters are connected directly to the LiON Splitter. The LiON Box Sun is configured with the appropriate Splitter variant for the battery systems used at the location—without the need for a separate power supply or additional charging cable on-site.
Select the appropriate connector on the LiON splitter.
Connect the selected plug directly to the e-bike or e-scooter.
Charging begins once the device is connected and is powered by the energy available in the battery storage system via the LiON Box Sun.
Thinking Ahead About Existing Locations
The LiON Box Sun is particularly well-suited for locations where canopies or suitable mounting surfaces for PV modules are already in place.
Instead of installing a completely new solar system, the LiON Box Sun is integrated into an existing site infrastructure. A suitable PV module serves as the energy source, while battery storage and direct-charging technology are compactly combined in the charging station.
Supplement existing canopies at businesses, public facilities, or mobility hubs with self-sufficient direct charging stations.
Use suitable roof and mounting surfaces for a PV module and a compact direct charging point.
Add a self-sufficient charging option to existing parking areas without having to install a completely new solar system.
The location is crucial: The PV module, orientation, shading, and charging requirements must be properly configured for the specific application.
Technical Specifications
The LiON Box Sun combines PV integration, battery storage, protection functions, and direct charging technology in a rugged enclosure. The LiON Box Sun Sub expands the system with an additional storage unit and direct charging point.
ONgineer 's direct-charging technology supports battery systems from leading manufacturers such as Bosch, Shimano, Yamaha, Brose, and BMZ.
The LiON Box Sun and LiON Box Sun Sub each feature an integrated battery storage system with a rated capacity of 384 Wh.
The LiON Box Sun provides a direct charging point. With the LiON Box Sun Sub, a second charging point is added.
With the LiON splitter, which features Bosch smart, Bosch oval, and Rosenberger connectors, approximately 75%* of the most common e-bike battery systems in Germany, Austria, and Switzerland can be charged directly at a charging station.
The housing is protected against dust and water jets and offers high impact resistance.
Protection against overcharging, undercharging, overcurrent, short circuits, and overheating ensures reliable operation.
Note: The specific Splitter configuration is selected to match the battery systems used at the location. Brand names mentioned are provided for reference purposes only and are the property of their respective rights holders. * Estimate based on market analyses of e-bike motor market shares (including Bosch ≈ 70% in Germany) as well as manufacturer and system specifications for Bosch smart/oval and Rosenberger connectors for Brose/BMZ, Specialized, and selected Shimano systems in the DACH region (as of 2026).
Technical Specifications
The LiON Box Sun forms the basis of the system. The LiON Box Sun Sub adds a second battery storage unit and an additional direct charging point. The technical specifications show which function each unit performs within the overall system.
Designed as a system: The LiON Box Sun Sub is operated in conjunction with the LiON Box Sun. The PV module is connected to the base station; the Sun Sub is integrated into the system via the connection cable.
| Technical Specification | Base Station LiON Box Sun | Expansion Module LiON Box Sun Sub |
|---|---|---|
| Function in the system | Base station | Expansion of the LiON Box Sun |
| Direct Charging Stations | 1 direct charging station | 1 additional direct charging station |
| Battery Storage | 384 Wh | 384 Wh |
| PV Connection | Connecting the PV module to the base station | Power Supply via the LiON Box Sun |
| Connection in the system | Output for expansion with LiON Box Sun Sub | Connection to the LiON Box Sun via a system cable |
| Maximum charging current | 2 A | 2 A |
| Battery Systems | Common 36-V E-Bike and E-Scooter Battery Systems | Common 36-V E-Bike and E-Scooter Battery Systems |
| Direct-Load Technology | LiON splitter | LiON splitter |
| housing material | Glass fiber reinforced polycarbonate | Glass fiber reinforced polycarbonate |
| Protection class of enclosure | IP65 | IP65 |
| impact resistance | IK09 | IK09 |
| Dimensions (H × W × D) | 300 × 300 × 180 mm | 300 × 300 × 180 mm |
| Weight | 8.2 kg | 7.7 kg |
| Charging Cable Length | 2 m | 2 m |
Note: The PV module is not included in the scope of delivery. The specific LiON splitter configuration is selected to match the battery systems used at the site.
Customizable
The front panel of the LiON Box Sun can be customized for an additional fee — for example, with a logo, colors, or design elements from your company, your municipality, or the respective location.
The specific implementation will be determined based on the technical and design possibilities.
Retrofit an existing site
Use an existing canopy to create a self-sufficient direct charging point. You can select the appropriate LiON Splitter configuration in the store. If you have questions about PV modules, location, or expanding your system with Sun Sub, ONgineer can assist you with planning.
The application scenario shown here is for illustrative purposes only. The PV module and shelter are not included in the scope of delivery.
Frequently Asked Questions
Answers regarding PV modules, battery storage, direct charging, expansion, and deployment at existing sites.
The LiON Box Sun is a compact solar charging station with built-in battery storage and a direct charging port for e-bikes or e-scooters. It connects to a compatible PV module and is particularly well-suited for retrofitting existing bike shelters, garages, and other suitable mounting surfaces.
No. The PV module is not included with the LiON Box Sun. It must be provided by the customer and selected based on the location, orientation, shading, and expected charging demand.
No. The LiON Box Sun is powered by a connected PV module and stores the solar energy it generates in the integrated battery storage system. A connection to the public power grid is not required for operation.
The LiON Box Sun provides a direct charging point. When used in conjunction with the LiON Box Sun Sub, the system is expanded to include a second battery storage unit and an additional direct charging point .
No. The PV module is connected to the LiON Box Sun. The LiON Box Sun Sub is connected to the base station using the provided connection cable and is powered by solar energy via the shared PV module.
No. The LiON Box Sun Sub is an expansion module and is operated exclusively in conjunction with the LiON Box Sun. The LiON Box Sun handles the PV connection and energy distribution within the system.
No. E-bikes and e-scooters are connected directly to the appropriate charging plug via the LiON Splitter. A separate power supply or charger is not required at the charging station.
With the available LiON splitter models, approximately 75% of the common e-bike battery systems in Germany, Austria, and Switzerland can be charged directly. These include battery systems from leading manufacturers such as Bosch, Shimano, Yamaha, Brose, and BMZ. The specific splitter configuration is selected to match the systems used at the location.
The integrated battery storage system stores the energy generated by the PV module and makes it available for charging. However, the actual amount of energy available depends, among other factors, on location, season, weather, orientation, shading, PV output, and charging demand. Therefore, the PV system should be designed to suit the specific application.
The rugged housing made of glass-fiber-reinforced polycarbonate has an IP65 protection rating and IK09 impact resistance. The recommended operating and environmental conditions, as well as proper installation, must be taken into account when planning the installation site .
Yes. The front panel can be customized upon request, for example, with a logo, colors, or design elements from the company, municipality, or specific location. The design will be tailored within the limits of what is technically and aesthetically feasible.
Would you like to retrofit an existing bike shelter, garage, or other suitable space for off-grid direct charging? Please send us a brief summary of the key details about your location. We’ll work with you to determine whether the LiON Box Sun is a good fit and how to best plan for the PV module, charging requirements, and a potential expansion with Sun Sub.
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