From the NPower Peg website;


Quote:
1 minute of walking provides approximately 1 minute of listening time on an iPod Nano


OK now for the Ipod nano 5th generation spec;

Music playback time; Up to 24 hours when fully charged.

Ipod Nano Battery spec is 3.7 volts, giving a capacity of 105 mAh so a 0.3885 Whr battery. So the iPod nano in audio mode consumes around 16mW.

So the NPower Peg also produces around 16mW power.

A Freeplay FreeCharge 12V hand crank will output around 6-8W, enough to energise a 75W inverter and power a 3-6W LED 240V bulb or about 450 times the power generation of the Npower Peg. i.e. 1 minutes use of the Freeplay hand crank is equivalent to 7-8 hrs walking using the Npower Peg.

Even one of these for $10 with its 250mW solar panel (15x the power output of the peg) will easily outperform the Npower Peg even though it will still take around 28 hrs of sunshine to charge a couple of AA Eneloops.

Why on earth would you lug around a 3/4 lb of dead weight for 7 to 8 hours to generate as much energy with 1 minutes cranking on a Freeplay Freecharge 12V.

The marketing is certainly misleading but is probably legal.
Buyer beware. mad



Edited by Am_Fear_Liath_Mor (05/25/11 11:32 PM)