Hey radamist. I ordered volt supplies for my sister to try. I have to say I have been impressed so far. I wish I would have started out on these myself! I accidentally ordered the wall charger not knowing that it did not come with a cord, so I received 2 batteries and a package of cartridges and no way to charge it to use it. lol The batteries came ½ charged and she was so excited she would not wait until I ordered the other charger (that goes with the wall charger) so she began using one of them on Thanksgiving. It did not go dead until last night. So she started using the other one & it is still going strong so far. I could not believe how long these battery's lasted. Without knowing better, I started out with the little 510batteries and had them rotated on charge constantly. Lol I also want to say that I purchased the Smooth Sample for her and the flavors were really good. I love the RY4 that they have! I have tried several ry4s because for right now it is one of my favs and so far smokeless image is one of the best. I here that I will get tired of it, but right now, I can never imagine it
lol Hope you have as much luck with your equip as she is having!