UG802 2 ampere power supply or 1 ampere?

[kadafi]

As everyone knows the power supply that is included is 5v 2A, but it powers fine from a USB port, benchmarking apps, and occasionally XBMC crashes.
Is this due to too low power?

And is 1A enough or should I just go for the 2A, pros/cons?

Thanks

[userx]

Its pretty well know around here with people that have had these units for awhile.
The 1A power supply in not enough. So the manufacture started to ship the 2A power supply.
These adaptors from china have poor quality.
Meaning even the shipped 2A wall power supply has been tested far below 2A.
They say 2A but most of these units are not delivering a full true 1A.

So try out a quality true 2A wall power supply and you problems will be gone.
Even a good "true" 1A cell phone charger will be better. Cheep ones are waste of money.

[123421342]

Do you have a 2A power supply you would recommend?

[userx]

For international plugs I have no idea.
But for a good usa style plug their are several good brands that are true 2A rated.

PowerGen has a good dual 2A usb wall plug. I have one and it's is great.
Only one port is true 2.1A other port is 1A.

http://www.amazon.com/PowerGen-Travel-Charger-Samsung-included/dp/B0073FE1F0/ref=pd_cp_cps_0

Griffin rated at 2.1A.

http://www.amazon.com/Griffin-Technology-PowerBlock-iPad-iPhone/dp/B003O98UWE/ref=pd_sim_e_3

Belkin rated at 1A. Not 2A but its a true 1A.

http://www.amazon.com/Belkin-Micro-Charger-Charge-iPhone/dp/B004CLYIZG/ref=pd_sim_cps_1

[123421342]

Thanks man!

[kadafi]

Thanks a lot!

Gotta get me a new power supply then.

Quick question, using the included power supply won't do any harm until I get a new one, will it?
I mean burning the house down or making my electricity bill go crazy by consuming too much? LOL

[reddragon72]

Nope that 1amp will work fine just don't get to frustrated when app crash a lot.

But when it comes to power supplies there are 3 things that are essential to know.

1. Voltage. This is the one thing that WILL kill what is plugged into it. If you go over or under more than 5% you can either blow up or not run what ever it is your plugging it into. Voltage must always be exact!!

2. Amperage. This one is a lot more lenient. To little and the device may not run right. To much and well.. your just wasting electricity. If you supply a 5v 5amp supply to an android stick that requires 5v 2amp then your good to go. I say this because the amperage will not be consumed by the device unless it takes it. So if the device likes 2amps and you supply 5 then it's only going to pull 2amps from the supply. No worries there, but there is no need for a higher amperage unless it's a cheap supply.... which brings me to the next part.

3. quality... here is where you don't want to skimp. If a unit says 2amps and it can only deliver 1amp then you are over taxing the unit and it can fault. This fault can be a simple "I no longer work" to a short that can over volt the device plugged into it and could catch fire. Cheapness is not the way to go. Now with that said most supplies today thrown into boxes have been tested with the device at hand and or devices it was used on before the one it is currently being packaged with. The do this because they failed a certain percentage. That percentage can fall into an acceptable category. Is that bad.... well yea if your on the receiving end of that non-acceptable tolerance. And remember if you spend 20 bucks on a good 2watt supply it'll last for many devices in the years to come.

So all in all, always match the voltage, always hit the amperage but a little more wont hurt anything, and never buy cheap.

[kadafi]

Nope that 1amp will work fine just don't get to frustrated when app crash a lot.

But when it comes to power supplies there are 3 things that are essential to know.

1. Voltage. This is the one thing that WILL kill what is plugged into it. If you go over or under more than 5% you can either blow up or not run what ever it is your plugging it into. Voltage must always be exact!!

2. Amperage. This one is a lot more lenient. To little and the device may not run right. To much and well.. your just wasting electricity. If you supply a 5v 5amp supply to an android stick that requires 5v 2amp then your good to go. I say this because the amperage will not be consumed by the device unless it takes it. So if the device likes 2amps and you supply 5 then it's only going to pull 2amps from the supply. No worries there, but there is no need for a higher amperage unless it's a cheap supply.... which brings me to the next part.

3. quality... here is where you don't want to skimp. If a unit says 2amps and it can only deliver 1amp then you are over taxing the unit and it can fault. This fault can be a simple "I no longer work" to a short that can over volt the device plugged into it and could catch fire. Cheapness is not the way to go. Now with that said most supplies today thrown into boxes have been tested with the device at hand and or devices it was used on before the one it is currently being packaged with. The do this because they failed a certain percentage. That percentage can fall into an acceptable category. Is that bad.... well yea if your on the receiving end of that non-acceptable tolerance. And remember if you spend 20 bucks on a good 2watt supply it'll last for many devices in the years to come.

So all in all, always match the voltage, always hit the amperage but a little more wont hurt anything, and never buy cheap.

Thanks a lot for the write-up, I don't have crashes with the included power suppy, only with USB port.

But all of this talk about cheap and poor quality makes me wanna go out and buy a quality 2A power supply, don't wanna risk anything

[123421342]

Do you guys think I can use an iPad USB charger? It's rated at 5.1v and 2.1 amps. it says it outputs 10w.

[userx]

Do you guys think I can use an iPad USB charger? It's rated at 5.1v and 2.1 amps. it says it outputs 10w.

Yes I have used one, it works.