Router Power Supply

[imported_noonedoes]

I have a router that is rated at 12v 1.3amp and the power supply that came with it has an output of 12v 1amp. The power supply stop working and i found another power supply from one of my spare switches which has a the same plug, polarity...but it's output is 12v 2amps. I plugged it into the router and it works, but would it damage the router or burn my house down?

 

[Barnaby W. Füi]

The router only pulls as much current (amps) as it needs. If the power supply can supply more amps than are needed, that's no problem whatsoever. It's actually good to have some headroom so that the power supply isn't working too hard.

If the voltage of the power supply was too high, however, that would be a problem.

 

[Modelworks]

The router is not using 12VDC internally so it doesn't matter. All of them are 5 or 3.3 V internally , it uses the same power supply design that your pc does to convert the voltage. In short it doesn't care. Most of them will work anywhere from 9V to 15Vdc sometimes even higher. The important thing is the total watts.

12v @ 1A = 12 watts
So as long as you keep it at between 9-15V and 1.2A for the lower voltages, more amps is fine, put 20A on it if you want, it will work.

 

[nipplefish]

It's actually good to have some headroom so that the power supply isn't working too hard.

Yeah, that's probably why it died in the first place, it was working at maximum capacity all the time.

 

[imported_noonedoes]

The router only pulls as much current (amps) as it needs. If the power supply can supply more amps than are needed, that's no problem whatsoever. It's actually good to have some headroom so that the power supply isn't working too hard.

If the voltage of the power supply was too high, however, that would be a problem.

Thanks, i've been running it for about a day and it seems fine.