Re: Okay here is a question!

2019-07-14 Thread Ken
I occasionally use Osmand for hiking and was originally staggered by the 
battery drain even screen off. However I didn't use it to navigate, just to 
check my position now and then. I discovered that returning to the home screen 
before turning the screen off made a major reduction in power use. Returning to 
Osmand again later it would quickly satellite lock and show my new position. 

In this mode of course it will not announce turns because Osmand is dormant, 
but can show progress along a calculated route which has not yet been started.

Hope this is of some use.

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Re: Okay here is a question!

2019-07-14 Thread Gavin Meredith


I find that using a Brouter app generated route with turn by turn 
instructions one gets a lot of commands many of which are unnecessary. That 
cant do the battery life any good.

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Re: Okay here is a question!

2019-07-14 Thread Helmut Jarausch
Yes, especially on devices using organic LED displays like Samsung devices.

Gavin Meredith  schrieb am So., 14. Juli 2019,
16:59:

> I use Osmand for turn-by-turn instructions when cycling. Every now and
> again I turn on the screen. Does Osmand use less battery in night mode (
> with its darker colours)
>
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Re: Okay here is a question!

2019-07-14 Thread Gavin Meredith
I use Osmand for turn-by-turn instructions when cycling. Every now and again I 
turn on the screen. Does Osmand use less battery in night mode ( with its 
darker colours) 

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Re: Okay here is a question!

2019-07-14 Thread 'Xavier' via Osmand

On Sat, Jul 13, 2019 at 10:33:33AM -0700, Tom Norton wrote:
If I leave Osmand loaded and turn the screen off,not turning off the 
phone, will it still drain the battery?


Unless you turn off the phone (i.e., "shutdown") the battery is being 
drained. [1] What changes is the amount of drain that occurs.


Maximum drain occurs when everything is on (all radios, all sensors, 
screen on and at maximum brightness, CPU doing something that requires 
full power).


Minimum drain occurs when most things are off.  Screen off is a big 
power saver (because in most phones the screen is often the single 
largest power consuming element).


Actual usage occurs somewhere in the middle (some things are on, others 
off).


If you are interested in extending battery life between charges, then 
turning off elements you do not at present need can save power.  I.e., 
if you are not using bluetooth, then switch it off.  That tells the OS 
not to wake the hardware up to even look for other bluetooth devices, 
saving the power that would be consumed.  If you are not using wifi, 
turn it off also (prevents scanning for access points to connect with).  
If you don't need cell service, turn that off (turning this off is 
called 'airplane mode', which also turns off wifi and bluetooth, but 
both of those can be turned back on separately).


And, of course, keeping the screen off (or on the dimmer settings) as 
much as possible will save a lot of battery.


But anything you have the phone doing (playing music, running OsmAnd 
for routing, monitoring a bluetooth dongle, etc.) will consume some 
power.  The more of those you have it doing at the same time, the more 
total power consumed.



[1] And, if you really want to get into low-level battery chemistry, 
even then it is "being drained", just so slowly that you are unlikely 
to notice over typical phone usage timescales.


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Re: Okay here is a question!

2019-07-14 Thread Harry van der Wolf
Op zo 14 jul. 2019 om 10:21 schreef 'P Wat' via Osmand <
osmand@googlegroups.com>:

> > Tom
> I agree with Per Pujal.
> If you turn off all unwanted aps, and BlueTooth and Wifi, and particularly
> turn off the screen, you may me able to run GPS and Osmand all day.  I
> achieved it last summer during a 14-day cycle tour, albeit I was using the
> (then available) automatic-screen-On/Off facility.
>
>
The automatic screen on/off is in the 3.4.2 which is now in the
beta-channel for which you can register. I assume it will be available
quite soon in the normal play store.
Otherwise you can directly download it from
https://download.osmand.net/releases/ (but I think that is the free
version).

And why not use a simple power bank? The smaller ones are just the size of
a phone with normally 1.5~2 timesthe load your phone battery has. Connect
it when your phone is below 30% and you can last quite some more hours.

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Re: Okay here is a question!

2019-07-14 Thread 'P Wat' via Osmand
> Tom
I agree with Per Pujal.
If you turn off all unwanted aps, and BlueTooth and Wifi, and particularly 
turn off the screen, you may me able to run GPS and Osmand all day.  I 
achieved it last summer during a 14-day cycle tour, albeit I was using the 
(then available) automatic-screen-On/Off facility.
Good luck
Paul W

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Re: Okay here is a question!

2019-07-14 Thread Pere Pujal i Carabantes
Note that everything the phone does drains battery, more or less.
You could see the battery usage per app in the configuration settings of the 
battery, then with some common sense and some try/error you could try to 
improve your battery life by disabling some apps or services that you don't 
need just now and reenable later when you need them.

Best
Pere

El 14 de juliol de 2019 7:27:28 CEST, Tom Norton  ha 
escrit:
>As a"tech challenged" individual I thank you for your reply! So just
>because the screen is off the GPS is still at work and the app needs to
>be closed for the GPS to be off.
>
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Re: Okay here is a question!

2019-07-13 Thread Tom Norton
As a"tech challenged" individual I thank you for your reply! So just because 
the screen is off the GPS is still at work and the app needs to be closed for 
the GPS to be off.

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Re: Okay here is a question!

2019-07-13 Thread Helmut Jarausch
Yes of course. It has to process the GPS signal and update its position.
But, on any smartphone the screen consumes much more battery.

Tom Norton  schrieb am Sa., 13. Juli 2019, 19:33:

> We are currently cycling across Europe. I use Osmand at different times
> during the day while my wife has a Garmin on her bike.
> If I leave Osmand loaded and turn the screen off,not turning off the
> phone, will it still drain the battery?
> Thanks!
>
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Okay here is a question!

2019-07-13 Thread Tom Norton
We are currently cycling across Europe. I use Osmand at different times during 
the day while my wife has a Garmin on her bike. 
If I leave Osmand loaded and turn the screen off,not turning off the phone, 
will it still drain the battery?
Thanks!

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