YX850 Automatic Power-Failure Battery Switching Module
Dispatched from Aarhus, Denmark. Shipping calculated at checkout.
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Keep devices running with the Automatic Lithium Battery Backup Module
Help protect your devices from power interruptions and voltage fluctuations! The Automatic Lithium Battery Backup Module switches between an external DC supply and a battery when the supply fails. This compact module is for electronics projects with suitable power arrangements. It is not documented for medical or life-critical use. The battery requires a separate compatible charger and protection for the selected chemistry.
Check indicator operation and provide suitable overload, overvoltage and short-circuit protection. The system requires testing for correct operation during switchover. An interruption-free output is not verified.
Key functions:
- Automatic switching: Switches to battery supply on power failure; test the actual transfer time with the load.
- Wide input/output voltage range: Supports voltages from 5V to 48V, making it suitable for various systems.
- Compact and easy to install: Its small size suits confined spaces and quick installation.
- External charger: Use a separate charger suitable for battery chemistry and cell count.
- LED status indicators: Check battery and charging status at a glance.
- External protection: Check requirements for overload, overvoltage and short-circuit protection for additional protection.
Technical specifications:
| Function | Details |
|---|---|
| Input voltage | 5V-48V |
| Output voltage | 5V-48V |
| Battery capacity | No built-in battery capacity; size the external pack for the load. |
| Maximum input current | 10A |
| Operating temperature | -20°C to 60°C |
| Size | 61mm x 30mm x 18mm |
| Weight | 23g |
With the Automatic Lithium Battery Backup Module you can build a battery backup for suitable electronics. Verify polarity, voltage compatibility and transfer time in the completed system.
What is included?
- 1x Power Failure Auto-Switching Lithium Battery Module
Warranty and shipping
We do our best to test all electronics before sending them to you.
This helps us maintain quality and avoid unnecessary trouble during development. If there is a problem with the equipment you ordered, you can always contact us, and we will gladly help you resolve it.
We dispatch from Aarhus to Denmark and Sweden. Shipping options and prices are shown at checkout. Delivery time depends on availability, destination and shipping method; contact us before ordering if you need an item by a specific date.





