Battery drains and turning itself off during activity

Ever since recent updates my watch has done nothing but had problems with the battery draining like crazy and turning itself off during activities. I had to reset it the other week due to it turning itself off and was stuck on the triangle. I've had this watch 4 years. It shouldn't be a problem I'm not going to buy another. Got a big race coming up and quite sick of it now. Clearly a problem with the updates. As it was working fine. 

  • Same problem here.  The watch has started turning off randomly during activities.  Hugely frustrating.  Technical support were unhelpful.  50 minutes on chat before ending the call without solving anything (literally leaving the chat mid call).  I then got an email offering me 25% off a 300 Euros model which I can't afford.  Not happy.  This should not happen to a 2 year old watch and it is now useless for training

  • Mine did this almost randomly. Some runs (or bike rides) were okay, and it recorded the entire activity. Other times the watch just went dark with no display and was shut off. I forget how old my Forerunner 55 was at the time, but I got a refurbished watch from Garmin.