battery for the BVC Clearomizer E-PEN

felicepreziosi

I really like the BVC Clearomizer E-PEN.
My problem is finding a suitable battery.
Using CF VV the coil lasts only a week.
What would be the most suitable battery for the BVC Clearomizer E-PEN to provide steam and flavor?

Cegoca

How many ml do you vape per week ?

That such coils last one week seems normal to me ... at how many volts do you vape and on what resistance ?