Yep, I charge it as soon as I can. Was expecting there would be battery problems. Was hoping it wouldn't be me but stuff happens ...I have seen a few early adopters with batteries draining more than expected. I have had no issues. 3 green lights out of 4 after 18 holes. I put the battery on the charger within 24 hours of the round played and take it off the charger soon after charger light is green. Is this the protocol most are using? Most the courses I have played are fairly flat, with some basins and hills.