Rob, the kit you're talking about- how long does the battery last before being charged? How often do you need to replace the batteries and switch? They are 3.7 v, correct?
I have a friend that's getting a kit and don't know enough about the epower to recommend it although it sounds good. I think when all of my ego stuff dies I'll get one.
Which do you recommend, the 14650 or 18650?
The batteries are 1050 mah. When I first started vaping, I was vaping all the time, it was always in my hand or in my pocket. Id get about a day and the next morning on one battery. Now that Ive been vaping for alittle and arnt taking a hit every other min Ive been getting about a day and a half on one battery. A few days Ive been really busy at work and have gotten over 2 days out of one battery. EVen when I was vaping a good bit I still got at least a full day from one battery so the batteries that come with the E-Power arnt bad at all. I was impressed with the stock batteries. I do have a 14650 High Drain Battery too which is 950mah and works well too. I put my batteries back on the charger when they get to around 20-25% left. I normally just put in a new battery every morning and the one I was using normally has around 25% left at that time. I use a multimeter and check them. You can get the multimeter than madvapes sells on ebay for about $3.50 if you look for the cheapest. Or pay $4.50 and it comes with a 9V battery.

As far as replacing the batteries and switch I havent had to do either yet. The non-proprietary batteries Ive heard can get up to 1000 charge cycles but Im not sure cause I havent had mine die yet so I dont know how long they will last. They def do last though and you wont have to replace them often. Im still using both my originals daily and havent noticed any drop in performance yet. And their only $4.50 so their real cheap to replace or buy an extra if needed.
The switch, like I said, seems to be pretty good too. Im still using my original. I bought an extra from CCV for $9.50 a few weeks after I got the E-Power just to have it but havent had to use it. With the free shipping from CCV its pretty cheap to get a spare. Im prob going to order another tomorrow too bc the new one has the 5-click on/off which would be a nice option to have. Its been able to handle anything I put on it, 1.25 ohms, Ressurectors, the 1.5ohm Dual Coil thats designed for the E-Power, 2.ohm DCs, etc. I prefer the Ressurectors and they hit really really well (When I said above I get about a day to a day and a half on a battery thats with the LR Ressurectors, so with a SR they should last even longer). And yes the E-Power is 3.7V. It is marketed as a regulated 3.7V, but I have people say on here that they dont think it is. Regardless if it is or not, and I dont really care, I think it hits really consistantly. I barely notice a difference between a fresh battery and a battery Ive been using most of the day.
Between the 14650 and 18650 I like the 14650 more but thats me. When I got mine they only had the old 18650 which def had problems so thats one of the reasons I didnt get the 18650. Also I dont like that its bigger. It does have a 2200mah battery though which is nice and I heard the new one supposedly is alot better and doesnt have problems. I havent used it though so I dont know for sure.
E-Power Kits | Sweet-Vapes E-Liquid
I know this website has the new one in crome if you wana check it out. I dont know any other vendors that have it but someone prob does. The new one has a bigger button switch and it uses the 18650 batteries which are easy to get.
The only difference is just the 18650 will last longer than the 14650. So it really depends what you are looking for I guess. It is harder to get replacement parts for the 18650 though. For me I like the 14650 bc its smaller so its easier to carry when your out and its easy to get spare parts. And to me the 14650 batteries last plenty long enough so I dont find it worth it to carry a bigger PV just so my batteries could last longer. ANd its really easy to carry a spare on you so you never have to worry about running out. So to me I like the 14650 more but its whatever your friend would want more. The 14650 is cheaper too and the deal from CCV is sweet. And like I said from the previous comment, once you get one since it comes with 2 batteries, you can buy a tube and spring for the tube from Hoosier and another switch from CCV and have a 2nd E-Power for cheap. You can also buy a second cone but I barely use it so I didnt buy another. I ordered the tube yesterday so now Ill have a black and SS one. Oh and I just remembered too, Gotvapes sells a spare kit that has a tube for 14500 batteries. So if you have any of them for another PV you could get that so you can use them too.
I think you would really like the E-Power swedishfish. It gives awesome hits and the maintanace over time really is cheaper than an eGo/Riva/kGo because of the much cheaper batteries and replacement parts. It really is an inexpensive, but satifying PV. I am happy with it and ive compeletly stopped smoking cigs. I really dont even know if Ill ever buy another PV bc I am satisfied with the E-Power. If I do buy a VV or something at one point it would really just be out of curiousity to try something else, not bc I feel I need more, so I think you will really like it.
Anoob 2 - Its funny you say that, I just finished college in May but do work in sales now in a financial firm

I hope this helped some for both of you!
Let me know if you have any questions
Goodluck!!