From the sound of things, if it is losing connection intermittently from the battery, a quick way to fix that is to add a "super cap" across the battery terminals. It would add about $1.00 to the production cost. Why don't one of you suggest that to Garmin when you talk to their rep.

Sometimes, a simple solution is the best. Sometimes, engineers just can't see the obvious. I should know I work with whole bunch of the most pig headed/obnoxious/sutbborn men I've ever known.

smilingcat