I have experience with drying wicks, i use cotton and i always set my mechs up for around .2-.3 ohm dual coil in auto dripping mode on a genesis. Every second hit or so i i tilt to redrip but sometimes i forget and i get the dreaded dry hit, and it does not taste good at 60-80 watts lol.
As far as the battery i always just change it out at about 3-4 hours. When i recharge it, it is usually around 3.7 volts.