unterhausen

I think the Gomadic must have a boost stage in its regulator or else it wouldn't work as well as it does. You can use it just fine with rechargeable batteries, for example. Same with the "lipstick" liion packs with one cell, they are boosting the voltage so they can regulate it to 5v. I have a gomadic, but the lipstick packs are a lot more convenient

I have been very successful at charging my 800 while navigating. Unfortunately, that doesn't necessarily mean anything with regards to the touring model. Apparently not every design team at Garmin realizes being able to charge while navigating is a good thing, the 500 causes a lot of people problems with this.