Start swim with 100% battery, Good GPS then start swimming, every stroke watch is alerting with sound, which must be draining battery super quick as I only get to 2000m then watch shuts down.
I have reset watch twice but still happens. Running 2.60 software and 2.90 GPS. I have alert distance set to 500m and no light on during activity.
Any ideas, very frustrating to lose swim after swim.