Test/Review of Enerpower Flypower USB 2A (PS10A050K2000EU)

EDC Gear for Flashlight Carriers USB Power Devices
1

Enerpower Flypower USB 2A (PS10A050K2000EU)



Official specifications:

  • Color: White or Black
  • Material: Plastic
  • Current Output: 2 A
  • Input Type: AC 110-240V
  • Output Type: DC 5V
  • Plug Type: Euro


I got this charger from Enerpower



I got this charger in a simple cardboard box.











Measurements

  • Standby power: 0.17 watt
  • Output is coded as usb charger (DCP)





I run a load sweep on both chargers and they are mostly identical. The charger can deliver 2.1A and overload protection will trip if the current is much higher.




Running them for one hour was no problem.
The temperature photos below are taken between 30 minutes and 60 minutes into the one hour test.



M1: 49,0°C, M2: 47,7°C, HS1: 73,0°C
White charger



M1: 48,3°C, M2: 42,2°C, HS1: 64,2°C
Black charger. I expected the black charger to radiate heat slightly better and be coolor, this is also the case on this picture, but not on the next.



M1: 48,6°C, M2: 44,5°C, HS1: 75,3°C
White charger. HS1 must be the two output diodes.



M1: 67,0°C, HS1: 70,7°C
White charger



M1: 67,6°C, HS1: 71,2°C
Black charger. Here the black charger has the same temperature as the white.



M1: 47,9°C, M2: 37,9°C, HS1: 48,9°C
White charger



M1: 61,0°C, M2: 47,5°C, HS1: 69,0°C
White charger




The noise is fairly low at 2A with 11mV rms and 140mVpp.



With lower load the noise decreases slightly: 9mV rms and 140mVpp



Tear down



With the cheap Chinese charges I can usual pop them open with a bit of pressure, this did not work here, I had to cut it open.
This is very good, then there is no risk it will pop open by accident.



The circuit contains fuse, inductors, bridge rectifier with 4 separate diodes, a controller ic.
It is interesting that it uses two diodes in parallel for the output rectification, one on each side of the circuit board.





All the white stuff on the circuit board might look like a mess, but is part of the safety. If you drop this charger on a hard floor the parts will probably stay where they are due to the white stuff.



Very good safety distance, exactly as CE says (very good).



Testing with 2500 volt and 5000 volt between mains and low volt side, did not show any safety problems.



Conclusion

This charger works as it is supposed to do delivering up to 2.1A and low noise.

A good charger, but boring design (IMHO).



Notes

The charger was supplied by Enerpower for review

Index of all tested USB power supplies/chargers
Read more about how I test USB power supplies/charger

2

Thanks for the review :slight_smile: Nice to see a good quality charger, i hope it are reasonably priced.

And i like the “boring” design :wink: I have been looking for a good 2A charger, the Sony one i use now only charges 0,8A according to my newly acquired USB Charger Doctor :slight_smile:

Anyone know where to buy one and how much it costs?

3

I see that you always do an isolation test. Can you explain to a newbie why is this so important - I mean what can cause such an over voltage/voltage spike on AC side? Lightening strike? Anything else? And thank you for doing such a detailed tests, its always an interesting read.

4

Lightning strike is the obvious thing, but even a fridge that turns off generates a high voltage spike.

Anything with electric motors, transformers or inductors will generate a high voltage spike when turned off. The rules for residential areas (230VAC countries) says equipment must handle 2500VAC, this is tested with 3000VAC or 4250VDC. My tester only has 2500VDC and 5000CDC settings.

In industrial areas the requirements are higher.

5

Thanks for the review!
German QC I guess :slight_smile:

Kind regards

6

All these usb charger reviews are really interesting, looking forward to that unbranded white five port one you got off ebay a while ago.

Cheers

7

It was only a week ago, shipping is probably a month and then there is some test time, i.e. have patience.

Until then I have many other to publish and there are more bad. I have a multiport one where you can cook on when it is loaded.

8

I have been searching for a place to buy this, but the only one i found was on amazon for EUR 9,90 + shipping from germany.

9

Look correct, it is from the company that I got it from.

10

Boring is good (grin)

I wish you could tell us whether 110-volt versions (US plug) are available.
And more important, whether a US-plug version is the same thing inside, or more cheaply made since they don’t have to pass a 220v safety test.

I’m not expecting you can do this. Just, you know, wishing out loud ….

11

I cannot, but they do have to pass 230VAC safety test, because they are marked for usage at 230VAC (These chargers are always marked 100-240VAC).

12

Hello HKJ,

Thanks for your excellent work. You are just amazing.

Recently i have found these;

Flypower DC 5V 2A AC Travel Power Adapter Wall Charger For Mobile Phone Ipad Tablets Android Tablet PC MID With USB port - Black

Power adapter tablet usb port wall battery charger tablet charger 5v 2a DC universal wall charger for cell phone with usb port

Black one is $3.99 and the white one is $4.55 as of now.

Would you please consider testing them?

13

Not at the current time, I looks like there is 20+ usb chargers in my queue at the moment and with about 1 review each week it will be some time before I need or have time for more. If it is still interesting in about 3 months, please suggest it again.