Real Life Battery Performance

So, yesterday I did 75Km race and used my F5X with the following:

Software 2.9, GPS/GLONASS, 1 Second Recording, Navigation against a course, Map page on mostly on, HRM Run belt paired.

The race took me 8:40 and the battery levels on my F5X went from 98% to 5%!

This makes the watch almost completely unusable for ultras over 75K. Might be because of the map page but there's not much point in paying the extra if you can't use it I guess.

Anyone else seen this type of performance? I was expecting to have around 40-50% left when I finished!

D.

0 Subtleguru over 8 years ago

3.21 Performance

Went for 1.5 hr run this morning on firmware 3.21 beta

Navigation active, total battery loss 10% or 6.7% per hour. This is better than before.

0 tickerguy over 8 years ago

6%/hour is approximately what I see when I am performing an activity with both GPS and Bluetooth on.

I have not yet done testing with Bluetooth disabled which should at least somewhat-improve things in terms of power consumption.

0 peakrodent over 8 years ago

That's promising! I'm on 3.21 but not run yet -will get out soon.

0 Subtleguru over 8 years ago

Another 3.21 data point

Today a 4:18 hr trail run, BT on, SMART recording, live track active, navigation active. Average battery usage was 6.3% per hour. Projected capacity 15-16 hrs.

This is good enough for me. 3.21 beta has solved my battery drain problem - can't speak for those folks using a Styrd.

0 peakrodent over 8 years ago

I really wish I wish getting 6% per hour...out again today for 70 mins and it used 11.8%. :-( That was 3.21 and with Stryd.

No idea what to do other than a master reset.

0 nedberg over 8 years ago

I charged to 100% yesterday. Now, about 25 hours later I have done three runs, total of 33 km in 3 hours. One run was an intervall workout programmed on the watch. I use GPS+GLONASS and 1 second recording + HRM-RUN. Connected to iPhone all day and a lot of notfications and checking of heart rate, altitude and other widgets. Currently on 71%. I don't think that is bad, but it could have been even better.

0 Former Member over 8 years ago

Yesterday. 30k trail power walk. Charged to 100% before the start.
Tough conditions for GPS (mostly under tree cover in forest). 1s, GPS only (no glonass), OHR off (used Garmin's HRM instead). Did shuffle screens a lot (Map/Nav).
Took me almost exactly 4h (4h 5m to be precise) and used 19% of the battery (went down to 81%).
So this is less then 5% per hour.

Surprised (in a good way). :)
Should last for about 20h in activity which is, to be honest, more than I expected (previously owned Fenix 3 and never got close to 20h with it).

0 peakrodent over 8 years ago

That is not too bad.

I was just out for 40 mins without Stryd and it used 10.7% :-(

0 Former Member over 8 years ago

12 hour solo event yesterday, tracking 73 miles in 11 hr's 50 mins. Battery went down to 42% by the end from a full 100%.

So roughly 5% an hour, with a potential of 20 hours. Fenix 3 best was 17.5 hours with a navigation breadcrumb trail.

I was using this run as a watch test for a future 24 hour + ultra.

To get this Smart recording on, normal GPS, WRIST HR/HR Sensors off, Activity Tracking Off, Altitude Auto Calibration off, performance condition data off (probably off anyway due to HR off), backlight not used but on 5% and 4 sec timeout, bluetooth off, wireless upload off.

I only had 2 screens, 1 mile vibration alerts, and no map/navigation was used.

Smart recording always seems to work best for me, even though there were some sharp turns I think the real mileage was somewhere between 73 - 73.5 miles so very accurate over that mileage.

0 Former Member over 8 years ago

WiFi with off

Hi all,

how can I switch off WiFi? is there an on/off option I haven't found yet? :confused:

Kind regards
Marcus