powering Raspberry from USB router port ??

[rapi22]

Hi,
I'm wondering if it could be possible to power a Raspberry from the USB port of a router like Huawei B525s-23a.
I don't need keyboard and screen, maybe a CSI camera.
Is there someone who ever tried this kind of thing ?
Thanks in advance for your advises and help
Regards

[scotty101]

It totally depends how much power the USB port on the router can supply. Typically a supply that can output 2.5A at 5v is recommended. If the router is only designed to power a USB storage device for updating the firmware, it is unlikely to provide this.

It also depends which model of Pi you use? The Pi Zero requires much less power than all the rest. A Pi3B+ is very power hungry.

[rapi22]

Hi,
thank you for your reply. It makes sense. I will try to find another solution.
Regards

It totally depends how much power the USB port on the router can supply. Typically a supply that can output 2.5A at 5v is recommended. If the router is only designed to power a USB storage device for updating the firmware, it is unlikely to provide this.

It also depends which model of Pi you use? The Pi Zero requires much less power than all the rest. A Pi3B+ is very power hungry.

[fruitoftheloom]

Hi,
thank you for your reply. It makes sense. I will try to find another solution.
Regards

It totally depends how much power the USB port on the router can supply. Typically a supply that can output 2.5A at 5v is recommended. If the router is only designed to power a USB storage device for updating the firmware, it is unlikely to provide this.

It also depends which model of Pi you use? The Pi Zero requires much less power than all the rest. A Pi3B+ is very power hungry.

https://www.raspberrypi.org/documentati ... /#pi-power

[drgeoff]

Depends. I've had a Zero plus USB Wi-Fi dongle combination running PiHole powered from the USB port of a BTHomeHub6.

[W. H. Heydt]

Hi,
I'm wondering if it could be possible to power a Raspberry from the USB port of a router like Huawei B525s-23a.

The nominal spec for a USB port is to be able to supply 500mA. That's enough for a Pi0, Pi0W, or A+. It's not enough to meet the specs for any B-series Pi, and especially not enough for a Pi3B+.

[rapi22]

Thank you for your help
Regards

Hi,
I'm wondering if it could be possible to power a Raspberry from the USB port of a router like Huawei B525s-23a.

The nominal spec for a USB port is to be able to supply 500mA. That's enough for a Pi0, Pi0W, or A+. It's not enough to meet the specs for any B-series Pi, and especially not enough for a Pi3B+.