Has anyone worn out the internal battery and replaced it? I've been using the 25 almost daily for the past 18 months and the low battery warning comes on about a half hour after a full charge when it's below freezing outside. Looks like the unit is sealed with four "star" screws for which I don't have the bit. I'd be willing to purchase that bit and a battery if the install procedure is straight forward.
I can get hold of the 2430 but suppliers from the United States tates cannot post by airmail due to Lithium and one supplier wanted $50 delivery and $8 for the part. Garmin wanted $80!
