Cuzor Mini UPS PRO | Backup up to 8 hours | 3 x 2900mAh battery | Supports Jio, Airtel and all other 12V routers up to 3A | Ups for 12V WiFi Router | Power Backup for WiFi Router | Wi-Fi Ups

I use an Airtel-branded Zyxel AOT-5221ZY router along with this product. It's a 12V 2A router. With this UPS, I can get around 5-6 hours of battery backup consistently, which is all I could ask for. It also works for any 12V <=3A powered item which uses a barrel jack. I specifically also use it to power my 3.5 inch external hard drive enclosure (which is also 12V 2A), since it's way more convenient than having to plug the enclosure to a wall socket. The power is truly uninterrupted, even when there's a lot of electricity fluctuations. The battery life still seems to be as good as new. Charging is slow, but it's a UPS that's meant to be always plugged into power, so I'm not complaining. It doesn't make any noise (like beeping) which I like, no one in the reviews mentioned it, so I'm doing it. The included barrel connector wire (to connect the UPS to the device you want to power) is short, which might bother someone, but not a big problem for me. Overall, it's an amazing value for money product! I highly recommend it.

Been two years since I installed it and just forgot about it. No battery replacement and no issues till now. Just plug one end to the adapter and the other to the router and its good to go. It is super essential for JioFiber users like me since the router takes a long time to start up in case of a power outage and then all the smart home devices get disconnected as well. After I installed this UPS my internet connection has been on 24x7. It has a really good battery backup as well. The maximum I got once was 6 hours. There aren't any long outages here so don't know how much I'd get with frequent power cuts but for my purposes it works really well.

Reliable backup power that keeps my WiFi running for hours during outages – compact, effective, and does exactly what it promises.

It's a great mini portable UPS for Wi-Fi using it from past couple of months and works as expected. However, it would be much better if the output power cable were at least 1 meter long

I am writing this review after using this product for more than 8 months. I have faced 0 issues and the product has been a life saviour for me as the router never goes down there has been multiple times power issue at my place and the product worked exactly. It is working flawlessly. One of the great product built from India and proud of the same.