If you can manage to get the top pressfit off, you'll find the inside real simple;
and since the pcb board is obtainable, it's a rather maintainable mod
This is actually a V3, and I'm guessing the only difference with the v5 is the pcb board itself.
I have both the V3 and the V5. The only difference between the two is the case spiral. They did update the V3/V5 PCB early in the V5 production to allow a constant on feature. Maybe the newer V3's are the same too, but IDK.
Overall, the Vamo's have treated me well. There are few faults with it I'll list...
1, is a bad center pin insulation. They use a fairly cheap rubber to insulate the center pin and it seems to fail fairly often... Mine allowed juice to flow into the PCB.
2, Some models are coated brass... including the 510 connector. This may result in crossthreading if you're not carefull.
3, the unit is press fitted. That means that if you drop it, it could make it look bent. Not too much of an issue unless you abuse your mod.
4, the V3's are just ugly IMO.
5, There is too much of a gap between the V5's 510 connector and the top of the top ring. Even though unscrewing the mod can make it look flush, it's too much of a gap IMO.
That's just about it. with the few problems I've listed, that's not too much of an issue considering their price. My V3 is still working strong, and I still use it.
If you don't mind the wait, Focal Ecig has the Vamo V5 on "
group buy" for $20.. ATM. which is cheaper than many mechanical mods. If you want a spare, you might want to consider picking one up and just waiting. If you're looking for a replacement brand of mod, you might want to try a Nemesis with a VW kick. with that option, you have your VW, but loose the display. Also, you can go fully mechanical if you want in the future. It's also harder to change settings.
Looking at my main vendor, Here's some comparable options.
Kmax
Smoketech SID
Vmax V9
Sigeli Zmax
Sigeli 20w mod
Also:
Sigeli Legend
Provari
Joytech Evic
There will be new mods comming out that support 30w. Not counting the box mods....
Evic Supreme
Kangside 30w
Seven 30
This should provide you with enough reference to look at for a while (and everyone else too)