Having 2 batteries does not mean the one not being used is charged.
Just got in some Vapor Room peanut butter cookie( damn good ) vaped a good mil in about 2 hours. Batt goes dead, np ill swaps batts and sit back with a glass of milk, my juice ( yes the cookie tastes just like the real thing ) an be jolly. Thought I charged my spare last night before I went to bed. Well damn me as I sit here waiting for a batt to charge. Now my only saving grace is I had a spare blu disposable here cause I dont have a analog anywhere close, dont really want one either but would be better then nothing in a pinch.
Lesson learned. I need more back up's for my back up and to remember to charge them

Lesson learned. I need more back up's for my back up and to remember to charge them
