Battery arithmetic for a day in the saddle
Navigation, a route file and a camera use more power than a pocket-sized phone expects. Estimating hours rather than kilometres is the more honest calculation.
Riding with a phone is a compromise between convenience and vulnerability. This note covers mounts, offline route files, battery arithmetic and the small habits that keep a day on course when a bridge is closed.
Navigation, a route file and a camera use more power than a pocket-sized phone expects. Estimating hours rather than kilometres is the more honest calculation.
Roadworks, one-way systems and a bridge closed for repairs are the ordinary reality of city riding. Two offline maps and a willingness to look up are worth more than a perfect plan.
A phone that overheats in the sun or rattles loose on cobbles ends the navigation. Inexpensive fittings solve most of it, provided they are fitted before departure.
A city seen from a bicycle is a different city: shorter distances, more districts, and data used in bursts at junctions rather than in a hotel room.
Navigation is light, photographs are not. A modest allowance covers a week of riding if uploads wait for wifi, and disappears quickly if they do not.