If recording a track, you do not want your phone to decide to go into "energy-saving mode" (the default if you are not actively interacting with your mapping app, such as OSMand) as it will drop location points and your recorded track wil now gaily bound over impenetrable chasms, rendering it rather useless for finding your way home in thick cloud.
Unless you have already done a couple of days with your phone set into "continuous GPS mode", you have no idea how long your battery will last. So if you haven't already practiced this on a fell in the UK, you need to bring a phone backup battery with you on expo. -
You can buy phone battery backups in Austria, but they are a bit epxensive, and hard to find in Bad Aussee (try the post office phone shop, or the deviously hidden electronics repair shop in central Bad Aussee). +
You can buy phone battery backups in Austria, but they are a bit epxensive, and hard to find in Bad Aussee (only available in 2024 in the "chemists" opposite the post office and down the hill a bit, which has a range of electronics stuff).
detailed instructions depend on the type of phone and the version of Android - someone fix this ?!