Hi just like to introduce myself. I am Dave and live in Perth WA. Purchased a Go 920 on visit to UK and found it great for car travel. Wasnt that impressed with its battery life however. Also used it for a round trip of Australia and overall very useful. Now I am back home I find that the battery life has faded totally as it only holds up for a few minutes. Have been quoted locally to change the nicads for the sum of $145 which sounds like a total rort. Anyone out there can give advice on how to and where to get nicads at right price. I usually have a go at tech problems successfully.