The amazing disappearing and reappearing battery charge
I just went out intending to do the intervals session on my Polar running plan. I had 70% charge when I set out. within 8 mins I got a low battery notification and it stopped the session. I switched to recording with Strava and completed the session. By the end of the run my Grit X Pro showed 38% battery. Deeply annoying.
Questions: how can I avoid this happening? I only charged a few days ago. I do have continuous heart rate tracking on. It auto sleeps overnight. The watch is second hand and i suppose reasonable chance it’s the battery, but is this known behaviour. Any settings I should adjust?
Also, can I import the gpx file to Polar and still get it logged With the plan? I had my watch on the whole time so had the heart rate..