Took somewhat more than seconds because I had to switch to IE to set my map area.
Got 240 points on the way to work this morning - and it's only a 10 minute journey by bike! Admittedly I went the indirect mile and a half route as opposed to the direct one which is only half as long.
Whoever said this knackers the battery is not wrong - went from just off the charger so 100% to 30% by the time I arrived at work - no cigar lighter socket on a bicycle

Will have to use carefully and probably generally without Wifi; GPS doesn't hit my battery that hard normally.