12V DC mini-UPS
A small DC battery can power your fibre ONT and router without running a large AC inverter. Match both devices before you buy.
120V AC · US NEMA 5-15
US specifications apply to US equipment. Other countries: match local mains voltage, plugs and service eligibility.
Before you choose
- Match the exact DC voltage on each device label. A 12V output is only for equipment that requires 12V.
- Match polarity, connector size and the required current for each output. Typical labels may say 1.5A–3A and 5.5 × 2.1mm or 5.5 × 2.5mm; measure yours.
- An 88Wh battery at an 18W combined load gives about 4.2 hours at the calculator’s 85% usable-energy assumption.
- Power at home cannot guarantee that the outside fibre network or Wi-Fi calling service remains available.
Check compatibility
Confirm these on the actual devices. The checklist does not identify hardware automatically.
Choose a regional retailer
Compare on Amazon USAmazon UK · Amazon US. Check the exact listing and seller before buying.
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US / Global household field manual
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- Regional wallet contacts & bank-group worksheet
- Fibre ONT + router compatibility & runtime guide
- 10-minute phone lockout & family callback plan