How I Keep My Internet Equipment Running Through a Power Outage

The problem that started this whole project was small. Power here does not always fail for hours. Sometimes it drops for a second or two. That is long enough to restart networking equipment, and a modem and router that reboot mid-call end the call.

So the first layer I built was electrical continuity for the equipment that keeps me online. My modem, router and a surge-protected power strip run from a portable power station, so a brief interruption on the utility side no longer reaches the gear.

A point worth being clear about: backup power does not make internet faster and it does nothing about an outage at the provider. It only keeps my own equipment powered. If the line itself goes down, a battery cannot fix that — which is exactly why internet redundancy became a later layer.

If you are starting from zero, this is the cheapest high-impact place to begin: list the few devices that must stay on, find out how much they actually draw, and solve for those first rather than trying to back up the whole house.

Follow the manufacturer instructions for any power station or battery you use, and do not improvise electrical connections.