I did this once with a router. I just bought a 12V SLA battery (a UPS battery) and a car float charger (sometimes called a “battery maintainer”). The charger was always connected to the battery, so it was pumping about 13V into the router. The router could withstand it. It’s easy enough to get a voltage regulator if it’s an issue, but most hardware already does it to an extent. It was DC all the way.
If I want 5V, I get a car USB charger and stick it inline.
I did this once with a router. I just bought a 12V SLA battery (a UPS battery) and a trickle charger. The charger was always connected to the battery, so it was pumping about 13V into the router. The router could withstand it. It’s easy enough to get a voltage regulator if it’s an issue, but most hardware already does it to an extent. It was DC all the way.
If I want 5V, I get a car USB charger and stick it inline.
I did this once with a router. I just bought a 12V SLA battery (a UPS battery) and a trickle charger. The charger was always connected to the battery, so it was pumping about 13V into the router. The router could withstand it. It’s easy enough to get a voltage regulator if it’s an issue, but most hardware already does it to an extent. It was DC all the way.