Technology, patent application and design
Our battery systems are based on state-of-the-art and extremely durable LiFePO4 cells. They are designed to combine a multitude of advantages while being extremely space-saving and economical. The smaller versions (12V/24V kits) are often used in campers, mobile homes, balcony power stations, boats, forklifts, or tiny houses. Our larger versions (48V kits), on the other hand, are ideal for conventional PV systems, forklifts, boats, and lifting platforms. Due to the higher stored energy, large consumers and entire households can be supplied independently from the battery(ies) for several days or even weeks. Increasing power and capacity is very easy – even retrofitted – by simply connecting similar batteries in parallel.
Our battery systems are complex to develop and have undergone extensive testing. Therefore, they are legally protected by various types of protection. These include a patent application, several utility models, and the visual appearance (design patent). Details and sketches from the patent application are listed below as examples.
Advantages
Our battery systems consist of several High-performance cells together, which ensures high cycle stability and thus the long service life of almost 8000 charging cycles LiFePO4 cells are considered the safest and most economical battery variant on the market – and for good reasons:
- Their compact size and their weight, which is up to 70% lower than other batteries, make them the ideal storage in a wide variety of applications. From campers and boats to powering entire houses.
- LiFePo4 batteries can be fully discharged and their capacity fully utilized. There is no memory effect like that found in older batteries.
- LiFePo4 cells are intrinsically safe, meaning they do not ignite or leak.
- LiFePo4 batteries are among the most modern lithium batteries. Due to the high number of cycles, the service life of LiFePo4 batteries is extremely long.
- Compared to lithium-ion batteries, LiFePo4 batteries are not only significantly cheaper and therefore more economical, but also have higher cycle stability.
Patent application and Utility model
For our battery systems, there is a patent application, utility model and design protection (design patent). Below are the certificates of the Utility model for the device for fixing prismatic battery cells, circuit cover and modular battery system with this circuit cover, protective cover and modular battery system with this protective cover and Support element and a battery cell with this support element to see.
The protective rights are can be found at the German Patent and Trademark Office under the following file numbers.
| Designation | File number | Download |
| Protective cover and modular battery system with this protective cover | 20 2022106 257 | |
| Wiring cover and modular battery system with this wiring cover | 20 2022 106 264 | |
| Device for fixing prismatic battery cells | 20 2022 000 119 | |
| Support elements and a battery cell with this support element | 20 2022 107 078 | |
| Protective cover and system with this protective cover | 20 2022 107 079 |
The design (design patent) is also protected and can be found at the German Patent and Trademark Office under the following file number.
| Design protection (design patent) |
| 009028020-0001 |
| 009028020-0002 |
| 009028020-0003 |
| 009028020-0004 |
| 009028020-0005 |
| 009028020-0006 |
| 009028020-0007 |
| 009028020-0008 |
Below we show some example sketches.
This diagram shows the 12V 280Ah version of our battery system. This is the basic design of our classic battery system. It consists of four prismatic LiFePO4 cells, two end plates made of high-performance plastic, a battery management system, tensioning straps, insulating washers, and a variety of built-in features such as belt guides and fasteners.
Battery system 12v 280Ah
The battery system consists of several components. One of these is this end plate made of high-performance plastic. It has a variety of functions, such as belt guides, fastening mechanisms, and the temperature sensor channel.
End plate made of high-performance plastic
End plate made of high-performance plastic
with highlighted temperature sensor channel (9-2, 9-1, 9-3)
End plate rear made of high-performance plastic
Covering the copper connectors with various functions
Cover (long version) of the copper connectors with various functions (sectional view)
Cover in exemplary representation during application
One of the advantages of our battery systems is their flexibility and scalability. From the basic components, even much larger battery systems can be easily and space-savingly constructed. Below is an example of a 48V 280Ah kit. It consists of 16 cells, with eight installed per row. This creates a very compact setup with a stored energy capacity of 14.3kWh.
Battery system 48v 280Ah with 14.3kWh
Purposes
Our products are flexible and have a wide range of applications. The same basic structure of the different battery systems allows for flexible cell addition, thus expanding the battery's power, voltage, and storage capacity. Their compact design allows LiFePo4 batteries to be used in a wide variety of locations and for a wide variety of purposes.
For example, our LiFePo4 battery kits can be used as mobile power or energy storage. They provide the perfect foundation for an emergency power generator that ensures continued power supply during power outages, or a mobile battery that provides power for longer camping trips.
Not only in the event of power outages or mobile applications, but also for feeding photovoltaic systems or balcony power plants our LiFePo4 batteries can be used. For more information on this topic, see our blog article How PV systems with LiFePo4 batteries work.
Shown here is our complete 12V 280Ah Lifepo4 kit, which includes all the necessary components. It consists of four EVE Grade A+ cells, a BMS, our Heavy Duty mounting kit, and other functional accessories. In addition to the technical specifications, another important aspect is our highly detailed German instructions, which we wrote ourselves. These describe every step of the assembly in detail.
cells
All our EVE Grades A+ cells are tested and meet the specified storage voltage. All cells are genuine LiFePO4 cells from the brand manufacturer EVE with a laser-engraved, complete QR code. Our customers do not need any tools of their own; they can install the cells directly using the assembly instructions for one of our battery systems.
The Cells in different arrangement, i.e. in one or two rows. This allows for the most flexible design of the battery dimensions guaranteed in order to adapt the space requirements to the respective installation situation.
Battery Management System
Our Daly BMS is one of the most modern battery management systems with a wide range of functions. The BMS can be configured via smartphone, and the charge level and other parameters can be viewed via the free app.
Heavy Duty Fixing Set
The Heavy Duty Fixing Kit holds our battery kits together and is unique in its design. The set, consisting of black-painted front and back panels, acts as the outer shell of the battery when used in conjunction with other accessories.
The design is protected by the European Union Intellectual Property Office.
Below is a short excerpt and example images of our protected design.
Cover copper connections
Application sketch
- If you choose a selection, the page will be completely updated.
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