Battery power backup?

Hardware Questions and Recommendations
1

Hi,
i've a Asus rt ax53U router, but there is a lot of power drop in my region..
which aplliance do you use for power backup...?
i want maintain power for 2 ou 3 hours ?
thanks a lot
Alain

2

The default 12V router mini-UPS from your local equivalent of Amazon. However, check if it is rated for enough current.

What I use at home is this:

Although it is rated to provide current for 12-24 hours to the stock ISP modem routers, it only lasts for 6-8 hours with Linksys E8450 + the ISP modem + the powered USB SATA adapter via the Y cable.

Here are some equivalents available in various parts of the world:

Philippines: https://www.lazada.com.ph/products/12v-mini-ups-battery-backup-power-supply-uninterruptible-adapter-for-wifi-router-biometric-i1965967638-s9420418593.html

Russia: https://www.ozon.ru/product/wgp-smart-dc-mini-ups-v1203w-12v-3a-istochnik-bespereboynogo-pitaniya-36w-1731399981/?keywords=12v+ups

Vietnam: https://vi.aliexpress.com/item/1005008039966603.html

Or more "professional" options:

https://www.amazon.com/dp/B079HFML55

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3

many thanks for this detailled reply !
i'll look for that...
have a good day

4

Connecting a hobby AGM 12 V battery to a charge controller (and the load terminal to the router) would be cheaper than the $100 system. But the same concept applies. You finally connect the wall wart output to the Input/Solar terminals.

Charge controller - ~ US$20
AGM battery- ~ US$20

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