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The pandemic COVID-19 outbreak forced companies to continue with work-from-home policy to maintain social distancing and for business continuity. More and more of us are working from home these days, and that means your home’s WiFi networks are more important than ever.

Anyone with a fixed-line connection will know that their WiFi drops whenever the power goes out. It is annoying if you are in an important meeting/webinar through Zoom, WebEx, or MS-Team, and there is an interruption due to power cuts.

Solutions :

1. Using a conventional UPS ( Bulky and Costly )
2. Mini-UPS ( Light and Cheap )

I have already posted 3 Instructables ( V1, V2, and V4 ) on DIY Mini UPS, but this Instructables is the most advanced one which is designed by considering the feedback from the users of my earlier versions of UPS.

New Features are:
1. Automatic Switching ( by using MOSFET ) between the power supply and battery pack during the power failure
2. Two Output Ports: 12V /2A and 5V/2A or 9V/2A
3. More backup time ( 8hrs)
4. Battery pack with 3S BMS
5. Additional Protection”

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