Will a DSE 801 battery fit a DSE 901 atomizer?
Will a DSE 801 battery fit a DSE 901 atomizer? and can I use my DSE 901 battery charger to charge the DSE 801 battery?
nope i am afraid neither will work. the 801 and the 901 have different thread sized, but you can always get an adapter for pretty cheap.
Nope. But, you CAN use a 901 atomizer on an 808 battery, except for the new 808 "sealed" auto batteries. The old auto batts and the manual batts work fine with the 901 atties.