Hello all. So thanks to several reviews that I've seen here and elsewhere, I've decided to go ahead and purchase Phoenix's 510 2.4-2.6 ohm cartomizers. However, I need a compatible battery, as my current PV is a Vea that I'd prefer not to continue using. 3.7 volts is ideal, but I wouldn't mind having a variable voltage battery if the price isn't outrageous. Can anyone help me? Links to recommendations are appreciated 