Charging everything up to go out hunting for first time this year. The WM10 was charging for most of the day and then started flashing red. I unpluged the charger, plugged back in and statred the process over. At this point I started researching if anyone else had this issue. Someone else had mentioned that if you take it off the charger, turn it on and let it sit until it auto turns off which takes less than 10 minutes. Note: The pairing light will blink during this process. Repeat this about 4 or 5 times and then put back on charger. This worked great and the green light went solid. Went out for the hunt , put back on charger and it charged to solid green again. Now I am back to retraining myself on the CTX 3030!