Hi
How many hours of use should I expect with a fully charged 520 when the map is displayed all of the time? After about 4 hours it's pretty much wiped out. Brightness is turn down to 0%, heart rate monitor and cadence devices connected.
Does using openstreet map drain the battery quicker than the supplied maps as there's more detail to display?
I want to buy a Varia, but got a feeling it'll wipe my 520 battery quicker still.
