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  • Overall Rating: 4
  • Price: 3
  • Quality: 4
  • Ease Of Use: 2
  • Usefulness: 5
Charge anything else but iPhone 4 – VMP3203-5V High Efficiency DC-DC Module Reviews

posted by randytan123 on 08/06/2011 Certified Owner

Involvement:General (knows how to use it) - Ownership:more than 1 month

Pros:
No heat till 1 Amp power output, seems the claim of high efficiency is true. I don't have a need to use more than 1A at this moment I can charge Vosonic VP-8360 that requires at least 500 mA, MP4 player, Nokia phones. I was also able to power up USB HD that require more power than what the USB port can provide
Cons:
Can not charge iPhone 4. iPhone 4 didn't even give any indication that it is charging. multiple cables tried. Those cables works in charging iPhone 4 via the USB ports of notebook.
Other:
strange behaviour. Not sure why it doesn't work only with iPhone 4 (didn't try with iPhone 3GS). Cable is NOT the issue as they work with USB port connecting to PC / notebooks
Bottomline:
It is a working solution providing 5V output at least for 500 mA. Just be careful if you want to charge iPhone 4. Not sure why it works with other devices needing 5V

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