Brownout-proof Wi-Fi: a LiFePO4 DC UPS for your router, under ₱5,000
Open in the lab ▸Make my own copy
Keep the internet up through a brownout. A DC UPS module sits between the router’s 12 V adapter and the router: while there is power it runs the router and charges a 12.8 V 6 Ah LiFePO4 battery; the moment the power goes, it switches the router to the battery with no gap, so the connection never drops. A 10 W router runs about 7 hours. The meter shows how much is left. In the picture the power has just gone out. Every part is on the bench, and Buy all the parts (on the project strip, or Menu → Make) lists them with an estimated price and shop links. Estimates are for the Philippines; check each listing before you buy.
What is on the bench
5 parts, 8 wires.
| DC adapter | 1 |
|---|---|
| DC UPS / ATS module | 1 |
| LiFePO4 battery | 1 |
| 12 V Wi-Fi router | 1 |
| Battery capacity indicator | 1 |
Put it on your page
The project runs live inside the frame: readers can press buttons, turn knobs and read the meters.
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Link
https://zencircuitlab.com/p/zclsbrownout
Published by its author under the lab's community terms: it may be opened, copied and changed by anyone. Simulation results are for learning; check a real build against the parts' datasheets.