I have just started using e-cigs and have switched from analogs completely about 4 days ago. I got a 510 in last week and it works great - with one exception. I have one of the two batteries that I can vape only a hit or two and then the light at the end flashes ten times quickly. Is it a dead/bad battery? I charged it as it said in the manual. This is also after charging it for 10+ hours and having a green light on the charger. Please help as the one battery is not quite long enough to keep me in vapes for a while. Also, is there a way to get a harder hit of nicotine on the first vape in the morning? Is the solution just to get a higher strength as I am using 36mg strength. I am having trouble sticking with it there in the morning with my coffee.