Unlike a battery, a fuel cell does not run down or require recharging.
Before you buy your iPod, find out the expected length of time between battery recharging that you can expect for the model you choose.
Ready2Wear Monitor-This package includes two receivers, a docking station for recharging, interference-free transmission for up to 800 feet, and a receiver the size of a wristwatch for comfort.
This unit plugs into the wall, needs no recharging and has three small lights-red, green and yellow-controlled by a switch that allows for 27 different frequencies.
The major complaint against iPods in the past has been that the batteries need recharging and replacing too often.