Whoops I posted below instead of replying
Over a year ago and im sure I paid cash when I traded in a g pen... I believe the receipt was hand written too by a lady
I exchanged it through you guys at your van nuys location :)
I have tried all that stuff I have 2 5.0s and 1 1.5 ohm..it was working great til I put tqo 18350s in with a 5.0 and it stopped working all of them
It worked up until and hour ago
Tried the 5.0 and nothing
HELP :( I have a persei and its fully charged and blue light but no heat to the carts. Doesnt get hot with 3.7 batt and 1.5 cart.. doesn't heat with two 18350s and 5.0 cart :( single or double head... is it the carts?