I just read on the blu forum that there is difference in polarity between the 510's and the others i.e. Blu, 306a, 401 and charging them on each others chargers is definitely NOT the way to go.
I also read that taking batts that won't charge anymore and putting them in the freezer somehow adjusts their circuitry (I don't understand why) and the poster reported the batts charged normally the next day.
Would this be called a "freezer mod"?
I just got a Blu free with some 510 stuff via classifieds and am just starting to research the compatibility. The complete atty/cart
sets ARE interchangeable, just not chargers.
Vape On!!!!