VV/VW or CV/CW?

[halcon]

Why are the regulated PVs known as VV or VW (Variable Voltage or Variable Wattage)? Shouldn't be CV and CW (Constant Voltage and Constant Wattage)?

Mechs are VV; the voltage will drop as the battery dies (variable). With a regulated PV, you will have a constant Voltage for the life of the battery (same applies for Wattage); the variable part is the desired Voltage/Wattage, but the actual output is constant.

What do you think? does this is confusing to you too?

 

[xpen]

Because you can vary the voltage/wattage at will, as opposed to mechs where voltage decreases on its own with use

 

[Ronald3638]

The standard Ego battery could be called a constant voltage device as it holds at 3.3 volts, sort of. At least that's what it's supposed to do.

An Ego upgrade version can be switched to unregulated mode which some vendors claim makes it a variable voltage device.

 

[halcon]

Well, it's just a way to name the devices, to me a little confusing, but I think I'll get use to it

 

[dr g]

As mentioned, because the wattage on a VV device be varied by the user. a CV device would be like a fixed-voltage regulated device, also as mentioned.

 

[tearose50]

Well, it's just a way to name the devices, to me a little confusing, but I think I'll get use to it

A little history might help. As far as I know the first e-cigs were regulated to be a constant voltage and thus produce a somewhat consistent vape between charge times. And, cig-alikes and ego batteries are built much the same way today.

Then people made changeable battery device, called "mods" -- At first they were called Battery Mods and then 3.7 volt battery mods. Some were/are all mechanical and some had/have electrical switches. None had any specific regulation.

Then set regulated or resisted "mods" were made, to produce a consistent higher voltage. This required a different battery configuration and I believe 5 volt was most common.

Sometime later clever people in the US put together e-cig parts along with the ability to change the voltage to a few set amounts. Soon after the vv and vw devices were born wherein tiny changes can be made to the voltage or wattage by the user, based on his or her preferences.

It is certainly true that the better quality vv and vw devices deliver a consistent or constant output, but that output is varied, based on user preferences.