EATON UPS 3S Mini 36W DC

The Eaton 3S Mini backup power supply is a compact DC UPS with off-line topology, enabling continuous power for low-voltage devices. It functions as a reliable UPS for a router, IP camera, home assistant, or other smart home elements. It provides a real power output of 36W and, thanks to its integrated lithium-ion battery, keeps connected electronics running for up to 30 minutes at full load. The power supply directly replaces the device's original power adapter, which simplifies installation. Its fanless design delivers completely silent operation with no distracting elements, and combined with its dimensions of 30×95.5×136mm, it fits easily into any home or business environment.

Performance and battery parameters

The power supply operates with an off-line topology and delivers a real power output of 36W with 78% efficiency at full load. In the event of a power failure, the integrated battery takes over, keeping the connected equipment running for 30 minutes. At the heart of the unit is a user-replaceable lithium-ion battery composed of two cells (2× 3.7V / 2200mAh). The ability to replace the battery yourself extends the overall life of the power supply without the need for professional servicing.

Flexible voltage of the Eaton UPS 3S Mini 36W DC

The DC UPS adapts to the voltage requirements of a wide range of devices. A switch on the body of the unit makes it easy to select one of four available output voltages. Clear LED lights display the currently set value. This versatility means one power supply can replace several different adapters, increasing its universal appeal. The power supply provides a stable voltage at several levels.

Operating properties and functions

The power supply's operation is fully automatic, but it also offers manual functions. It supports a cold start, which allows it to function as a portable external battery for powering devices even when away from the mains. A set of clear LED indicators shows the battery's state of charge, so the user always has an overview of the remaining capacity. With a weight of just 0.4kg and compact dimensions, handling and placement are very easy. The operating temperature ranges from 0–35°C. The unit is connected between the electrical socket and the powered device, where it fully replaces its original power adapter.