Hi Guys, I have just received 645 (non M) and used it for about 10 days on 6.2 firmware. I don't seem to have freezing problem many people experience here, but I do have a concern about battery life. I left a fully charged watch for about 7 hours (overnight) and battery charge went down by 8% . This doesn't seem to be normal to me. I called support and they told me that I shouldn't charge the watch using any regular wall charger, I should charge it using a computer USB port and see how it goes. Does this make any sense? I never had any problem charging my forerunner 220 from any charger. The next step they advised to reset the watch. This is also not very assuring. I only had the watch for 10 days. I really like the watch and would love to keep it. But so far, I am worried. I don't use any fancy custom options or external devices. Can someone please comment on my concerns.
