Ya pays yur money and you takes yur chances. I've literally lived off of batteries for more time than most. Over The Road, and sleeping in it. 12v fridge, laptop, GPS, NOAA radio, CB, both satellite radio's, and ran a CPAP to sleep with. Some batts seem to last forever. . .some die sooner than later. I've NiCd's that said they were good for XXX number of cycles. I've used those batts every work night for going on 7 years! Now, I work security, security is always on. . .weekends, holidays. . .makes no difference to me. Last 6 years I've only had weekends off, and half those I've worked OT. I'm always on. Been using eCigs since May. Have yet to loose my first battery. When I first started, I followed the instructions that came with the eCigs. Charged one set 24 hours. (Don't care, that's what the damned thing said to do). Anymore, I just charge um till the light turns green. Seems to me the people that make all these things that make up an eCig could get together an talk to one another and sort out what proper practice is for all this crap. But, seems they don't. . .so who knows? Having lived on the road for considerable time my best advice is. . .carry spares!
Cheers,
otrpu