From what you are indicating, your power supply is under sized. The
voltage is correct, but there is another very important issue. If your
unit is asking for a supply of 2.4 Amps, and your supply is able to only
put out 400 ma, there will be a problem. Your supply will not last very
long.

When your unit is in a USB port, it probably can sense that and the
limitations are regarded. When you connect the external supply, it will
expect a very different spec.

--

JANA
_____


"Marcel" wrote in message
...
Hi,

We bought a Creative ZEN V mp3 player. It comes with a USB-cable to
charge the li-ion battery through a pc. I want to charge this player
with a power supply (220V in). I think the ZEN needs 5 V at 2.4A (max)
it says at the internet. I do have already a power supply witch says:
input 100-240V-50/60Hz 120mA, output 5V === 400mA. Is this save to
use??? Will it work?

Thanks for helping

Marcel