Mine feels like it charges slow but I had an iPhone with a smaller battery so that might be why
Yeah, a larger battery will take longer to charge - you have to squeeze more electrons into it!
I used Nokia Drive today going to the municipal airport where my EAA chapter had it's monthly Young Eagles event. We flew something close to 70 kids today. It took about 6 hours due to some pilots knocking off due to wind, so a few of the kids ended up leaving. I'm not sure what the final number flown was, but we had 74 registered before we closed registration.
Anyway, I used the car charger while using Nokia Drive, because the phone was on the whole time, but I haven't plugged it in since then, (about 9am EST - 10 hours ago), and I've used the phone off and on since then, I'd say pretty lightly for me, but it's at 81%. If I was using my Trophy similarly, I'd be well below 50% if I hadn't plugged it in on the way home. I'm pleased with it so far.