Questions tagged [power-supply]

The methods for powering the Raspberry Pi (typically via its micro-USB connection.)

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votes
1answer
4k views

What type of micro-USB is used?

From previous experience I've discovered there are quite a few different types of micro-USB connectors. Here are three main ones: I'm pretty sure it's not the middle one; and I think it's the left ...
68
votes
10answers
134k views

How do I modify my Raspberry Pi to be powered over PoE?

Is it possible to modify the Pi, so that it can receive it's power via Power over Ethernet (PoE)? I would like to be able to power my unit via the ethernet cable, so that I don't have to worry about ...
7
votes
2answers
7k views

Fixing issues with Powered USB Hub

With my PI I'm trying to use the F4U018 Belkin 7 port hub (yes - the one on the problem list). Its one of three I have around, all of which happen to be on the problem list - I don't want to shell out ...
14
votes
6answers
12k views

How can I build a power switch?

I would like to be able to have a simple power switch between the RPi and its USB power, such that I don't have to plug and unplug the device to operate it. Is there a simple switch available that I ...
16
votes
4answers
1k views

What are the dangers of connecting the Micro-USB through an adapter straight to the mains?

I have a USB-Mains power adapter for charging up an iPod, which I thought I would use to power my Pi. It looks like this: with USB one side, and Mains the other. I was wondering if there are any ...
4
votes
0answers
144 views

Can I leave my Raspberry Pi turned on all the time? [duplicate]

Possible Duplicate: Is it suitable for running continuously, 24/7? I want to maximize the life of my Raspberry Pi, should I try to turn it off when I can or is it ok to just leave it running all ...
292
votes
15answers
648k views

How do I turn off my Raspberry Pi?

Should I just pull the plug? Or is it best if I exit LXDE and any other running processes first?
40
votes
6answers
50k views

What's the current draw and supply voltage tolerance?

What's the current draw when the Raspi is at idle (min), and at 100% CPU/GPU (max)? (With no peripherals/accessories plugged in) What's the minimum and maximum voltage allowed to run the Raspi stably?
23
votes
4answers
26k views

Can I feed the device with a current rating that's higher than what's recommended?

The quick guide says that the power supply for my Raspberry Pi model should provide at least 700mA. How about the upper bound? Is it fine to use a power supply with an high output current, say higher ...
39
votes
7answers
32k views

Powering without using the micro USB

Is it possible to power the device without using the micro USB? For example, is it possible to use PoE (Power over Ethernet)?
137
votes
7answers
29k views

How can I run the Pi on Solar Power?

Has anyone successfully set up their Pi to run on solar power? If so, what would be the cheapest way to sensibly and reliably achieve this, using a combination of solar cells / batteries / voltage ...
4
votes
0answers
95 views

Is there any reason why a powered USB hub that provides 700mA couldn't power a RP? [duplicate]

Possible Duplicate: Powering from a non-dedicated power source The Quick Start Guide says: Micro USB power supply – make sure you use a good quality one, capable of providing at least 700mA ...
23
votes
5answers
2k views

What do I need to know when choosing a dedicated power supply?

This question asks about what you'd need to know to power a Pi from a non-dedicated power source. It also links to the Quick Start Guide, which says: Micro USB power supply – make sure you use a ...
22
votes
6answers
5k views

What happens if the power supply is 550 mA?

I read that the current should be at least 700 mA. I plugged a power supply with output current of 550 mA, and it seems to work fine. Can something happen to my Raspberry Pi? Does a wrong ...
79
votes
10answers
34k views

What do I need to know to power from batteries?

What voltage range can it accept? What sort of batteries are appropriate?
28
votes
5answers
2k views

Powering from a non-dedicated power source

While the quick start guide says not to power the device from a USB hub or from a computer, the only requirements for power listed are: Micro USB power supply – make sure you use a good quality one,...

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