I've had the AW since AW2. Over the years and with several versions of the watch my fully charged watch will lose power after roughly 45 min to 1 hour using music & workout features simultaneously. Does anyone have suggestions re: keeping this going longer? I'm not sure what to features to turn off but would like to take longer walks/jogs without losing power. I've used AC to swap watch in the past but it only seems to work short term. Watch is charged overnight, every night without exception.