Disappointing battery life

according to a few tests and other members posts, I am reading that GNSS enabled will use around 20% more battery and it's possible that Galileo is the same. If that's the case, I will stop using it, but would love to be told otherwise as it does seem that little bit more accurate during runs anyway - might just be be a placebo :-)

as for the UK mention - the government decided to stop it's involvement with Galileo and develop their own system. Plus it's not fully deployed yet, so I am just trying to establish a use case for it at the moment.

according to a few tests and other members posts, I am reading that GNSS enabled will use around 20% more battery and it's possible that Galileo is the same. If that's the case, I will stop using it, but would love to be told otherwise as it does seem that little bit more accurate during runs anyway - might just be be a placebo :-)

as for the UK mention - the government decided to stop it's involvement with Galileo and develop their own system. Plus it's not fully deployed yet, so I am just trying to establish a use case for it at the moment.

Is Glonass and Galileo even worth it for the UK? I thought Glonass was useful for Russia, Nordic countries, Canada etc. Galileo was good for Europe but not fully functional. Are either that much better than just good old GPS? I am yet to be convinced really.

How is everyone charging their watches ? Just through computer USB ? Obviously it only comes with the charging cable and no wall adapter etc

I use the Ipad's charger and it works like magic. Can't report on the actual time it takes to charge the watch since I never pay attention, but it doesn't show any issues.
I also bought a 1m cable because the original is just a joke.

Mine was even worse because I got full discharge in 20 hours. I still suspect that the gps chip inside the watch was on all the time and draining the battery because when I was actually doing exercise that did have gps enabled the battery drain did not get much worse and I bet battery would have lasted 16 hours when using gps even if when gps was not in use and I was just doing 24h heart rate monitoring battery only lasted 20 hours.

I sent my watch to garmin on tuesday. I hope they will send me something that works better.

I just received a new Fenix 5 plus from garmin and I am currently charging it for the first time . Hopefully this works better. I only sent them just the watch back, but strangely they sent me back full new box, so now I have 2 of those useless short charging cables and manuals. :P
There was only about 100 unit difference in the serial number so there is a chance that new one might have problems too.

With the old one that had battery was drained really fast it took exactly 2 hours of charging from being automatically turned off because of empty battery to showing that it had full 100% battery. It did the normal jump from around 90% to 100%, so it was probably not really fully charged when it showed 100%. I used normal usb 3.0 port for charging.

How is everyone charging their watches ? Just through computer USB ? Obviously it only comes with the charging cable and no wall adapter etc

When I called Garmin Support about my excessive battery drain, they asked if I was using a wall adapter or charging via a USB port on a computer. The agent said that apparently USB port is better as it "drip charges" the watch. I had tried charging both ways and had excessive battery drain no matter what.

Today I have received a replacement less than a week after notifying Garmin directly about the issue, so I appreciate the hassle-free approach from Garmin on that. The SN is several 1000s less than on the original (original in the 24000s; replacement in the 20000s), so I'm guessing that's an older batch? In any event, the watch was dead on arrival so am currently charging it via USB for the first time and then we'll see if it suffers the same battery drain or is closer to the claimed specs....

Drip charges? Must be employee of the month.

I have noticed something interesting about post activity battery drain. This requires more investigation and testing, but so far it seems consistent. When doing a route that lasts about 38 minutes for me using GPS + Glonass I get battery drain after I end the activity. For example yesterday after I ended it I had 67% battery left and within next hour the battery went down from 67% to 62% and after that it stabilized to normal. When using GPS + Galileo I have not noticed anything like that. Today I did the same route with GPS + Galileo and after I finished the activity there was 57% battery left and it stayed at 57% for 2 hours and continued normally without any extra battery drain. Both GPS + Glonass and GPS + Galileo seem to drain same amount of battery during the actual activity. I can't be sure if the difference post activity is just coincidence or just because inconsistent battery meter, but I will keep an eye on this if this to see if trend continues.

On the other hand it feels like GPS + Glonass feels bit more accurate for me. It follows roads more closely on the map and doesn't seem to cut corners as much and I end up about 40 meters more distance with it because of that compared to GPS + Galileo.

I use GPS+Galileo and always see post activity battery drain, haven't compared with Glonass though. I did try with GPS only and this made no difference, so not convinced that the GPS settings have any influence on PABD unfortunately.

I use GPS+Galileo and always see post activity battery drain, haven't compared with Glonass though. I did try with GPS only and this made no difference, so not convinced that the GPS settings have any influence on PABD unfortunately.

Main thing is that I have used GPS + Galileo probably 5 times since I got the watch and I didn't get any drain any of those times and battery percentage stayed at exact value of what it was when I stopped activity, but the one time I tested glonass to see if there was accuracy difference I lost at least extra 5% of battery during first hour after I ended the activity. I will test glonass another time to see if that happens again.