People, stop saying batteries are unreplacable. Like an iPod, you need to take apart the Express to detach the battery from the logic board via a connector.* Battery lasts approx 15hrs on low volume and low OLED brightness. 12hrs on Med-Low Volume and High OLED brightness (which is what I use).
Li-Ion Batteries typically lasts 300-500 Full cycles. A Full Cycle is basically the running down of the battery’s xxxx mAh (the power it can supply) till automatic shutdown and fully recharging it again. It is safe to assume (like a poster above me) that the Sansa Express will last through 400 cycles before it’ll drop charge capacity (meaning that the battery will not hold full charge at the normal xxxx mAh but lower).
There are AC USB wall chargers avaliable for sale. They’ll charge your Express.
The reason why the Express is non-functionable while attached to the computer and is functionable on a wall charger is because the computer is actively syncing with the Express. If you disable drivers for the Express, you should be able to charge it w/o the Express sycing with the computer, allowing you to use its’ functions. It’s almost like how the Motorola phones can be charged via USB on computers. (Vista does not seem to do this)
*Taking apart the Express will void warranty.
Message Edited by SkyL on 09-26-2007 05:36 PM
Message Edited by SkyL on 09-26-2007 05:37 PM