Online-UPS Akku-Cover

This cover simplifies building an Online-UPS by providing a structured and organized solution, eliminating the need for messy free wiring. It keeps all components in place, ensuring a clean and functional setup.

With this design, you can securely house the LiFePO₄ battery, charger, and DC-DC converter, maintaining proper cable management and ventilation. The cover is designed for easy assembly.

For a complete walkthrough, including assembly and setup instructions, be sure to check out my YouTube video, where I explain everything in detail.
 

Parts:

◽LiFePO4 battery: https://www.amazon.de/dp/B0BQ5KW7X3
◽Charger for LiFePo4: https://www.amazon.de/dp/B09MQZ5KCY
◽Buck Boost Converter: https://www.amazon.de/dp/B0B6SMMYJL
◽Schottky diode SB540: https://www.amazon.de/dp/B079KDRFY7
◽WAGO 3-wire terminals: https://www.amazon.de/dp/B07GGRFHKW
◽WAGO 2-wire through connectors: https://www.amazon.de/dp/B08X6CPFNR
◽0.8mm² silicone cable : https://www.amazon.de/dp/B08DTC4Y4V

💡 What is the difference between an online UPS and a “normal” UPS? 💡

An online UPS (also known as a “continuous converter UPS”) permanently supplies the load from the battery and continuously converts the voltage. This means:
✔ No switching time - the power supply remains stable, even in the event of a power failure.
✔ Better voltage quality - fluctuations in the power grid have no effect on the device.
✔ Ideal for sensitive electronics, e.g. routers, servers or medical devices.

In contrast, most “conventional” offline or line-interactive UPSs work in this way:
⚡ The load is supplied directly from the mains.
⚡ The UPS only switches to battery in power failure (switching time: usually 2-10 ms).
⚡ Sensitive electronics can have problems during this short switchover time.