I tried to use a 510 to 901 adapter and the draw is really stiff. allot of the websites offer a 510 to 901/808 adapter but is there one specifically suited to maximize the airflow for a 808 on a 510 battery?
Good Prophets has adapters for reasonable prices.
901 Battery to 808-D Atomizer adapter
this is really the best one for airflow out of the bunch i got.
That makes sense.
But, I thought you were looking to adapt from a 510 battery, not from a 901 battery.