I vape a 0mg 30/70, pg/vg and have a ego-T (1100 mah) with a CE4 clearomizer. My battery starts blinking to represent a lack of charge after around an hour or two and after I refill it about 2 the clearomizer holds 1.8mL. is this about how long I should get out of the 1100 battery on a single charge? And any suggestions to conserve battery life as i feel restricted having to charge it frequently