I just got a VP1 and love it. My question is about charging cycles, and not wanting to reduse the life of my batteries. My standard 510 batteries blink and no longer vape when they need charging, but I'm sure they are not 0V when this happens. I just got the VP1 yesterday, so at this point I don't know what the best indicator for the need for a charge is going to be. At this point I'm just assuming that vapor production will fall off, but I know that if I charge without leting them discharge enough that they won't hold a charge for as long. This might seem like I'm freaking out over nothing, but I don't want to damage the batteries right from the get go. Perhaps the real question is will it just stop producing vapor, or will production go down to an annoying point causing me to want to charge them befor it's time?