This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Navigation chewing up the battery

I usually run with a battery data field that logs the slope of the discharge into the fit file. During a standard run, it normally drains at about 3-4% an hour, sometime a little more.

However, when navigating a course, this leaps to 10%+... I run ultras, so that means I have to carry a battery pack and charger. For example this weekend, I ran overnight and had to charge the watch after about 30 miles. This isn't a huge problem, but its one more thing to think about, and the battery was one of the reasons I bought the 945!!

What experience do others have with battery drain when navigating ? Is this 10%+ normal??

I've just received the new update - but not expecting that to improve things, others suggest it could be worse!

Top Replies

mcalista over 5 years ago +1

One suggestion is not to leave it on the map screen - constantly re-rendering the screen is a major processor (and therefore battery) drain. Instead, leave it on a data screen, and just change to the map…

All Replies

0 mcalista over 5 years ago

One suggestion is not to leave it on the map screen - constantly re-rendering the screen is a major processor (and therefore battery) drain. Instead, leave it on a data screen, and just change to the map screen when you need it (eg. when approaching a track junction).

You mention overnight - just wondering if the culprit isn't your backlight settings, rather than the navigation?

0 gingerneil over 5 years ago in reply to mcalista

thanks - I'll give that a go.

I wondered about the backlight in the past, so turned that off this time. I had a head torch on so could easily see the screen.

0 mac27000_ over 5 years ago

Yesterday I did 3h run with navi - all the time map screen on. Battery level 99% -> 86%, so about 4,5% per hour - not bad

0 gingerneil over 5 years ago in reply to mac27000_

Hmm... something amiss with mine then! I have tried restarting the watch, and will do that again now that I've just had the update.

0 ivoste over 3 years ago

Did you find a solution ? Mine has the same problem. 10%+ drain with navigation. Otherwise great watch.

0 Martin_Otcenasek over 3 years ago

Its normal, it depend on the how detailed map do you have it.

0 mcalista over 3 years ago in reply to ivoste

As above, don't leave the map screen running - continually re-rendering the map as you go along is processor and battery intensive. Use a data screen, and just scroll to the navigation screen when you need to do a navigation check.