1uke_
Posts: 76
Joined: Thu Jul 07, 2016 9:19 pm

Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sat Sep 28, 2019 9:15 pm

Hello,

As my skill with Raspberry Pi increases, I find I am using more Pi's to host various services on my network.

As a result of this I am fast running out of power sockets.

I wondered if it is safe to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?.

Below is an example

Image

User avatar
rin67630
Posts: 621
Joined: Fri Mar 04, 2016 10:15 am

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sat Sep 28, 2019 9:43 pm

1uke_ wrote:
Sat Sep 28, 2019 9:15 pm
I wondered if it is safe to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?.
This is safe. I am doing it with a similar multi-charger.

drgeoff
Posts: 9927
Joined: Wed Jan 25, 2012 6:39 pm

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sat Sep 28, 2019 10:46 pm

"Safe" and "performing satisfactorily" are two different things.

User avatar
davidcoton
Posts: 4260
Joined: Mon Sep 01, 2014 2:37 pm
Location: Cambridge, UK

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sat Sep 28, 2019 10:46 pm

You need to check the total load the PSU can support. Often they will not provide the full current on all ports simultaneously.

Even then they may not maintain 5V when running a significant load.
Signature retired

User avatar
DougieLawson
Posts: 36578
Joined: Sun Jun 16, 2013 11:19 pm
Location: Basingstoke, UK
Contact: Website Twitter

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sat Sep 28, 2019 10:59 pm

The markings on that photo say 2.4A @ 5V, 1.8A @ 9V or 1.5A @ 12V.

I'd have thought it was easier to use a mains 13A socket strip and an official power supply for each Raspberry.

Image
Note: Having anything humorous in your signature is completely banned on this forum. Wear a tin-foil hat and you'll get a ban.

Any DMs sent on Twitter will be answered next month.

This is a doctor free zone.

fruitoftheloom
Posts: 21094
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 4:15 am

1uke_ wrote:
Sat Sep 28, 2019 9:15 pm
Hello,

As my skill with Raspberry Pi increases, I find I am using more Pi's to host various services on my network.

As a result of this I am fast running out of power sockets.

I wondered if it is safe to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?.

The developer of the PiDramble uses this product:

https://www.amazon.com/AUKEY-Charger-4- ... B077P1HC6H
Retired disgracefully.....
This at present is my daily "computer" https://www.asus.com/us/Chrome-Devices/Chromebit-CS10/

LTolledo
Posts: 2158
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 5:02 am

1uke_ wrote:
Sat Sep 28, 2019 9:15 pm
Hello,

As my skill with Raspberry Pi increases, I find I am using more Pi's to host various services on my network.

As a result of this I am fast running out of power sockets.

I wondered if it is safe to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?.

Below is an example

Image
An almost similar device was used by another forum member.... with disastrous result for him/her.

you're free to follow his/her example....

while most of us follow the official recommendation of the RPF.... and having peace of mind while at it.
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

User avatar
rin67630
Posts: 621
Joined: Fri Mar 04, 2016 10:15 am

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 8:53 am

DougieLawson wrote:
Sat Sep 28, 2019 10:59 pm
The markings on that photo say 2.4A @ 5V, 1.8A @ 9V or 1.5A @ 12V.
IMHO that corrspnds to the the AI standard for smart chargers.
They can deliver higher voltages than 5V, but only after a handshake over the USB communication channel.
Nothing wrong with using this charger at 5V only.

User avatar
rin67630
Posts: 621
Joined: Fri Mar 04, 2016 10:15 am

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 9:07 am

fruitoftheloom wrote:
Sun Sep 29, 2019 4:15 am
The developer of the PiDramble uses this product:
I am using that one, but for one 3b+ Pi or 2 3a+ Pis only.
https://www.ebay.de/itm/3-Port-USB-Tele ... 4462394319
They deliver a good 5V voltage, the display measurement is accurate enough and I am informed about the drawn current.

User avatar
Gavinmc42
Posts: 4068
Joined: Wed Aug 28, 2013 3:31 am

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 10:04 am

I'm looking for one that will give me 12amps total, 4 x 3amps.
I'm dancing on Rainbows.
Raspberries are not Apples or Oranges

User avatar
davidcoton
Posts: 4260
Joined: Mon Sep 01, 2014 2:37 pm
Location: Cambridge, UK

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 10:50 am

Gavinmc42 wrote: I'm looking for one that will give me 12amps total, 4 x 3amps.
The RAV unit discussed in
USB powered hub or charging station to power Pi 4B cluster?
may be suitable.
Signature retired

LTolledo
Posts: 2158
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 10:53 am

An ATX (or even an ITX) PSU may be up for the job....
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

User avatar
rin67630
Posts: 621
Joined: Fri Mar 04, 2016 10:15 am

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 2:29 pm

LTolledo wrote:
Sun Sep 29, 2019 10:53 am
An ATX (or even an ITX) PSU may be up for the job....
Not directly! Powering the Pis with an unfused high current Power supply is dangerous!
You will need to include a proper fusing on each output and include everything in a decent cabinet...
That is probably not something for everyone.

A good solution would have been to re-use a charger from an obsolete laptop. They usually deliver 3-4A at 19v.
With a buck converter as that one for each pi :
https://www.ebay.co.uk/itm/6-24V-12V-24 ... 3809634140
you can power around five Pi 4 and seven Pi 3, maybe even more if you don't use a lot of periphery.

LTolledo
Posts: 2158
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Is it OK to use a 4 Multi-Port Quick Charge Mains Wall Charger Adapter Plug to power multiple pis?

Sun Sep 29, 2019 8:52 pm

I'd still prefer DougieLawson's suggested solution...

safer
simpler
modular
better isolation
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

Return to “General discussion”