Def check out the kGo and E-Power. I recommend either of the 2 bc their both quality 3.7V PVs that give a great vape.
They provide alittle more "oomph" than a 3.3-3.4V eGo and more importantly they handle the lower resistance attys and cartos better.
The main difference between the E-Power and kGo is that the E-power uses non-proprietary batteries, which are removable. That is one of the main reasons I got the E-power and I love it. The batteries are 1050mah so they last a long time and I get on avg a day to a day and a half on one battery. E-Power batteries cost $4-6 compared to eGo/kGo/Riva batteries that cost $14-20, and the E-Power batts last longer before they need to be replaced. I also prefer the E-Power bc I find it much easier to carry a spare battery for it. I work all day too and wanted something that would last all day. One E-Power battery lasts all day anyway, but just in case its very easy to carry a spare battery in your pocket or bag bc their small (about the size of a AA but alittle longer) and if needed just unscrew the switch and pop in a fresh battery. So you really never need to worry about being stuck with a dead battery. With the eGo/kGo/Riva, if you want to carry a spare battery you have no choice but to carry a second PV with you. Its not a huge issue, but for me its much easier just to carry an extra small removable battery, instead of carrying 2 PVs.
Also everything is replaceable on the E-power and all parts can be bought seperately. With the eGo/kGo/Riva, the PV is all one unit, so if you need to replace a battery or a switch fails, etc etc, you have no choice but to replace the entire unit everytime. With the E-power, if you need to replace a battery, you can buy just a $5 battery. If a switch fails, you can buy just a $10 switch and keep using your existing tube and batteries. I really liked that bc Im on a budget and the replaceable parts make the E-power cheaper to maintain.
The kGo is also a really nice PV, even though it uses proprietary batteries. Its affordable and gives a great vape too. The batteries are 1100mah so they last a long time and most people get at least a full day on one kGo battery.
Both kits can be bought for under $50, and I think youd be really happy with either of them.
I also recommend trying the Ressurector cartos. They are awesome and are designed for 3.7V PVs like the kGo and E-Power. They give a great vape and produce a LOT of vapor. They are 1.7ohm and hold about 2ml of juice so they last a pretty long time before they need a refill. They work great on the kGo and E-Power and I def recommend trying them. The Boge cartos are good too, but only hold half the amount of juice that the Ressurectors do, and thats why I prefer using the Ressurectors.
Also like mentioned, you can get a tank and be able to go even longer between refills. The Smoktech 3.5ml tank is perfect for E-Power/kGo sized PVs and it works really well. Its cheap and allows you to refill a lot less often. Smoktech does make a bigger 6ml tank, but personally I think the bigger tanks look funny on E-Power/kGo sized PVs and they make the PV top-heavy. The 3.5ml tank is about the same diameter as the battery tube so it looks nice and doesnt make the PV top-heavy. The Smoktech tanks are dual coil tanks, but that doesnt mean you have to use dual coil cartos. Like someone else said, I also think dual coils suck at lower voltages. The tank comes with a pre-punched dual coil carto in it and a drip tip, but since I think dual coils are only good when used in the 4-5V range, I didnt even use the DC carto that comes with the tank. Instead I use the Ressurector cartos and they work a LOT better. They are single coil, but their the same size as a dual coil carto so they fit in the tank perfectly and work awesome.
Crystal Clear Vaping and Hoosier Ecig Supply both sell the 3.5ml tank for a good price and they also both sell pre-punched Ressurectors for the Smoktech tanks. The name "Ressurectors" is just a nickname, and they are really the Smoktech 1.7ohm XL cartos. Hoosier calls them the Smoktech 1.7ohm XL cartos and CCV calls them the Ressurectors, but their the same cartos.
Both vendors sell pre-punched Ressurectors and they have the metal base on them like the DC carto that comes with the tank. You dont have to use a carto with the metal base, but they are nice bc the flanged bottom stops the tank from being able to slide down.
Heres what my E-Power looks like with the Smoktech 3.5ml tank on it:
The first picture is a Ressurector carto by itself, and the second picture is the 3.5ml tank with a Ressurector in it. As you can see, the 3.5ml tank really doesnt make the PV much bigger.
Even though the 3.5ml tank is the smaller one, it still lasts pretty long. I really like the 3.5ml tank bc its big enough that I can fill it in the morning and not need to refill all day, yet its still small enough that I can carry my E-Power in my pocket with me everywhere I go, even with the tank on it.
I also use and recommend using the Big-Belly drip tips on the tank. They are the big-belly drip tips in the pictures and I like them bc they fit really snug and dont wiggle or fall off. The reason their good for the tanks though is that they are slightly fatter at the bottom then the carto, so they stop the tank from being able to slide up. So between the metal base cartos and a big-belly drip tip the tank cant slide up or down and you dont have to worry about the tank leaking in your pocket bc the carto got pushed out. I carry two 3.5ml tanks with my 2 favorite juices everywhere I go, one on my E-power and the other in my pocket, and Ive never had either leak at all, and Ive been doing that for about 3 months.
I would def consider getting an E-Power or kGo and some Ressurector cartos bc I think youll absolutely love it, and then you could always buy a tank later if youd like.
Its def a good set-up for someone that wants a PV for work or when their out, bc with the awesome battery life of the E-Power or kGo and a 3.5ml tank with the Ressurectors you can have an all day maintanance free vape, and still have a PV thats very portable.
Goodluck!
