Join Date: Oct 2004
Location: Nibley, Utah, USA
If it's a Garmin unit with an internal battery pack, shutting off the GPS will not prevent your bike's battery from becoming flat. Hook two batteries together, which is what you are doing with the GPS wired permanently hot, and in a week or less of non-riding you'll have a flat battery on the bike. Don't ask how I know this. The technical explanation of why this happens is, I'm sure, packed with fizzicks and IEE theory--but in practice, that's the way it works. Connect two batteries, leave 'em sit with no use nor input charging, and in a surprisingly short time you have dead batteries.