I did the same, then I went over to IMRBatteries and picked up a few LG MJ1 18650 3500mAh 10A Battery - Protected Button Top cells for $3.99 each and a few other sale items. 
I did the same, then I went over to IMRBatteries and picked up a few LG MJ1 18650 3500mAh 10A Battery - Protected Button Top cells for $3.99 each and a few other sale items.