I have the same questions as everyone else and that is where can you purchase the battery. The Garmin part number 360-00033-00 (taken from the photo) cannot be found anywhere including the Garmin site. The number US332029 A9H (also taken from the photo above) cannot be found anywhere. The specification of the battery is 3.7V 150mAh and is a polymer Lithium battery. I attempted to find other batteries which meet these requirements on Aliexpress and I found a number of batteries which are close (3.7V 140 mAh P Ion). They look identical to the photos above and are 30m x 20mm x 3 mm. The only problem is that they will not last as long as the original Garmin battery and the connector on top of the Garmin battery would have to be removed and somehow attached to the new Aliexpress battery. The battery to search for on Aliexpress is 302030 and the cost (including shipping) is roughly $10.00. I am not sure if these are identical to the original Garmin batteries but the dimension appear to be correct.