yes. It should work. Webplayer only really needs about 25w of power
The link you posted is for a power inverter... which converts AC power to DC.
(posted for those who don't know that, if you didn't know that already). The problem, is we still need 10 to 15 volts AC to run the inverter from. so you need a REALLY high capacity battery to run the inverter.
You got your DC and AC mixed up. And, i think the goal was to allow the unit to be used in a car (12VDC). THis would work. But, it's still pretty expensive. You can get an inverter for a lot cheaper with a higher power output, or preferrably, get a DC-DC converter (12VDC to 5VDC 5A). I am still looking for one of these.
I just ordered 2 inventers from ebay for $5 each:
I own one purchased long time ago in Circuit City ($45 at that time) and it's been working great on the road with my laptop. It should be just fine for the webplayer. Otherwise the walmart alternative sounds good too.
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