Gizzu SURF Simple 18W
55 Wh LiFePO4 · 12 V / 9 V / 5 V out · Up to 6 h router (maker's claim)
R5493
Check price at GizzuWhen the power goes, most homes lose Wi-Fi even if the fibre line itself is still up, because the router and the fibre box (ONU) both need mains power. A small mini UPS bridges that gap.
How much power does a router use?
LookSee lists a router and modem at 2–20 W1. Amatron's listing says the average router pulls between 5 and 12 watts2.
Three mini UPS options
Gizzu 60W Mini PoE
69 Wh LiFePO4 · Router + ONU about 5.3 h (maker's claim)
R6294
Out of stock when checked
Check price at GizzuWhat to check
- Voltage: match each output to your router's and ONU's adaptor. Amatron's listing warns that the wrong voltage can damage devices2.
- Battery chemistry: Gizzu rates the 18 W LiFePO4 unit at up to 2 000 cycles while keeping 80% capacity3.
- Both boxes: fibre needs the ONU powered too. The 60 W unit is sold for router and ONU together4.
Runtimes are seller claims, not our tests. Your router's real draw decides the hours.
Sources
Checked 2026-10-29 unless a row says otherwise. Prices and terms change often; confirm on the seller's page.