HelloWorld123123
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Samsung 5.3V

Tue Nov 22, 2016 2:43 am

Hi,

I've got a Samsung 5.3V 2.0A adapter, has anyone used this? In the specifications it says 5.0V. Has anyone used 5.3V to power my Model B+ successfully?

ElEscalador
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Re: Samsung 5.3V

Tue Nov 22, 2016 3:39 am

Tolerances allow for 5.25, and I'd wager that 5.3 comes down a little under even a little load. I personally wouldn't hesitate, but I've been called wreckless before so...
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W. H. Heydt
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Re: Samsung 5.3V

Tue Nov 22, 2016 4:16 am

Does the wall wart have a cable attached, or do you supply the USB cable? If the former, it is supposed to deliver the rated voltage at the end of the cable, if not, the rating is supplied at the USB connector and you probably won't have 5.3v at the Pi end of whatever cable you use.

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HawaiianPi
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Re: Samsung 5.3V

Tue Nov 22, 2016 8:58 am

I have been powering my Pi3 with a 5.3V/2.4A supply for several months now. It works great, and even though it is a tiny bit over spec (5.25V/5.3V is less than 1% difference) nothing bad has happened.

The power supply I am using is a RAVPower RP-PC002W, which is a 30W phone/tablet charger with two USB outputs.

One port is Qualcomm QuickCharge 2.0 and Samsung Adaptive Fast Charge compatible, and the other is an "iSmart" port.

The Quick Charge/Adaptive Fast Charge port has a nominal 5.08V output for non-QC/AFC compatible devices (at up to 2.4A), and it will also output 9V/2A to 12V/1.5A for QC/AFC compatible devices (my Note 4 charges at around 9.4V/1.7A).

The iSmart port outputs 5.3V at up to 2.4A, and that is the port I use to power my Raspberry Pi3. The 5.3V is not just open circuit voltage, it will maintain that voltage even under moderate loads, and will stay above 5.2V at 2A. I have voltage monitors at the output of the power supply and the output of one of the Pi3 USB ports. They are currently reading 5.30v @ 510mA from the PSU, and 5.18V at the USB port.
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davidcoton
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Re: Samsung 5.3V

Tue Nov 22, 2016 9:40 am

HelloWorld123123 wrote:I've got a Samsung 5.3V 2.0A adapter, has anyone used this? In the specifications it says 5.0V.
The top limit is 5.25V, I would not want to run much above that AT THE PI in the long term. It's probably more of a risk to USB peripherals than the Pi itself, but there is a limit specified for a reason. Measure the voltage on the Pi (GPIO pins 2 and 6) under normal load, if this is below 5.25V there should be no problem.
ElEscalador wrote:I've been called wreckless before
wreck-less is fine (no crashes), it's reckless you want to worry about (behaviour likely to cause a crash). :lol:
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ElEscalador
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Re: Samsung 5.3V

Tue Nov 22, 2016 1:08 pm

davidcoton wrote:
ElEscalador wrote:I've been called wreckless before
wreck-less is fine (no crashes), it's reckless you want to worry about (behaviour likely to cause a crash). :lol:
LOL ... See what happens when I treat rules and specifications optionally?!
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Tinderbox (UK)
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Re: Samsung 5.3V

Tue Nov 22, 2016 1:11 pm

I used my Samsung 5.3v 2.0amp adaptor that came with my Tablet for a couple of weeks without any problems on my Pi3B

I replaced it with an Belkin 2.4amp adaptor and tested it to 2.4amp for 30min and the voltage at the socket only dropped from 5.12volts to 5.09volts

John.
Raspberry Pi 3 Model B

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FTrevorGowen
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Re: Samsung 5.3V

Tue Nov 22, 2016 7:16 pm

HelloWorld123123 wrote:Hi,
I've got a Samsung 5.3V 2.0A adapter, has anyone used this? In the specifications it says 5.0V. Has anyone used 5.3V to power my Model B+ successfully?
Is it the same type as this one:
http://www.cpmspectrepi.uk/raspberry_pi ... EP-TA11UWE
which had a loading behaviour not too dissimilar to this:
http://www.cpmspectrepi.uk/raspberry_pi ... _Models.29 :)
Trev.
Still running Raspbian Jessie on some older Pi's (an A, B1, B2, B+, P2B, 3xP0, P0W) but Stretch on my 2xP3A+, P3B+, P3B, B+, A+ and a B2. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

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