No panic yet, but I have just got a TomTom One for a present and am looking forward to using it in the near future. However I can't see any means of getting at the battery and am wondering what happens when and if, it gives up the ghost? Also is it still necessary in this day and age to let the battery completely discharge before recharging it? I have got a funny feeling that when this particular battery goes the gadget goes with it. Can anybody confirm this? ..Bingalau..