anyone have one? how long does the internal charger battery last? does any one have a review on it? i am considering getting one since my ego doesn't last all day. it starts to drop off maybe 4 to 6 hours. i chain vape in the car so i also considered getting the usb pass thru & a car adapter. i could chain vape and not loose power. it's that or the pcc but i could have a new battery in addition to purchasing a usb pass thru. if any one has any thoughts to share i would greatly appreciate this. 
