It's very simple, or at least it can be.
If you use a full Volt cartomizer on a Volt battery with Volt brand juice you can expect not to have to top off longer than the length of the battery charge. The system is pure simplicity unless we choose to complicate it by changing any part of the equation. I usually use a fresh carto on a fully charged battery and top them off at night when I charge my batteries. The people who have told you this are probably not using the Volt system, or at least all of it. There are many different types and brands of cartos. Different ohms, vertical coils, dual coils etc., and many different types of juices. Pg/Vg content, flavorings etc. Some are using different juices at higher voltages etc. and painting all carto use with the same brush. I sometimes use juices with a higher vg content and it shortens my carto life. I also have put the cartos on hotter batteries using an adaptor and it uses more juice. ECF as a whole is a wealth of knowledge and information but unfortunatley the new members section is getting full of misinformation as well. Often by well meaning members who use advanced mods and such and haven't kept up with the rapidly advancing technology on this style of pv. They sometimes completley ignore the needs the newcommer expresses, like cig size, and recommend the larger styles, fillerless cartos, low resistance cartos, etc., that require more fiddling with. Rolygate, forum manager, said it best. 510s are for people who like to fiddle with things, 808s are for those who don't. If you're just trying to keep it simple and make a smoother transition to ecigs 808 is the way to go. It ain't no hobby. Later if some of the other stuff starts looking attractive you can always break out your credit card and go for it but the satisfaction of the vapor stays pretty much the same. Usually just a bigger cloud of it or hotter. It can indeed be a fun hobby but I believe you posted earlier that you sent one of the recommended larger pvs back? If not I apologize, I've got you mixed up with someone else. If so....case and point. You're more likely to find accurate information about using the Volt on this thread from the people who use them and have the experience and knowledge of the product. Only one of us is a SI rep. The rest of us are just satisfied user/customers. Plenty of excellent general knowledge almost anywhere on the forum. Hope the mailman comes to see you soon. I can't wait to see how you like it.