I had a flat battery the other week due to no use over the silly season and the Aldi GPS. I blame the Adli GPS as this was the only device that was connected to the battery except for heated hand grips that were switched off and go through a relay. My guess was the GPS was charging the internal battery. The internal battery has never been able to hold enough charge to use without the cradle so... My fix was to take the internal battery out so there was nothing to charge! This was easy to do but... I found out GPS needs the internal battery so if I am unable to find one that will hold a charge I will have to put the old one back in. (Unit still worked but was unable to access GPS area or clock). While I had the GPS apart I noticed a marked "speaker out" connection on the board that would be very easy to utilise should one be inclined. I also use my GPS as a helmet holder when I am not riding. This resulted in the support for the cradle breaking. An easy fix was the Tomtom Ram Mount made by Ram Mount and a very fast ozzy distributer is [URL]http://www.gpsoz.com.au[/URL] :-P