High battery consumption

Asked by Uranicus

unav 0.22
BQ Aquaris 4.5
15.04 r24

Using unav in the car for navigation works quite well since I have a power cable directly attached to the phone. I tested it without and was able to roughly suck 50% of the battery in 30 - 40 minutes. Wow!

Is there a way to reduce battery power to use unav also for pedestrian navigation? I would not see this as a bug since unav is currently mainly a car navigation software but maybe it would be also good to think about a way how to reduce battery power. This has also to do with the screen being on all time (which changes when being used by foot when one can turn off the screen between two crossings, etc.). But maybe also the GPS could be put in a mode where is gives on a lower frequency position signals (operating system internals?) and is also supported by a compass.

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costales (costales) said :

Hi :)

I have your same phone and that is in a normal way. Without chargin = ~6
hours of navigation :O

Could you try another apps, like Sensor Status (with GPS tab), HERE
maps, OSMTouch...?

Thanks a lot!

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Uranicus (matthias.ritter) said :


I saw that this question is still open. Sorry for not answering properly to your reply ...

I have tested at that time with several settings and with uNav but also with Activity Tracker etc. I did never get to a really consistent result. I also had the impression that OTA updates led to slight differences again.

Basically speaking I came to the result that I had approx. 20% battery drop per hour wit my Aquaris 4.5 (uNav & Activity Tracker have the same battery drop properties). This counts for a full battery (above 50 % load level). Lower load levels the battery drop is higher which has most likely something to do with a non linearity of the battery percentage.

I mark this now as problem solved. I do not know how Android based systems behave with navigation on.