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I recently purchased an Innokin iTaste VV which I am most pleased with.
However, I noticed it only charges up to 4.2 volts before the automatic shut-off takes effect.
I called the dealer who sold it to me and they told me that was normal. Most of their batteries do the same thing.
It seems odd it is adjustable up to 5.0 volts if it is only capable of charging up to 4.2.
Does anyone have any insight, either specific or generic?
Most of the batteries do only charge up to 4.2. Running it at a higher vv will drain it quickly, but if that is where you like your hit, then....
I think most of the carto/cartomizer will start to burn the ejuice before you reach 5 volts on a consistent basis. Dunno, you can try if you like.
If I'm not mistaken all ecig vv, vv/vw devices run on batteries that only charge to 4.1 or so maximum charge. It's the electronic circuitry in the device that "bumps up" the voltage higher than that. Of course it drains your batteries faster to do this.
Variable devices use boost and buck regulators. This allows the voltage to be controlled by digital mechanisms..which are essentially tap changers, like you'd find on transformers or regulators in power distribution.
The bottom line is when this voltage conversion is done, if your output is higher than the input from the battery the charge of the battery will dissipate faster, but with the VV, you can at least plug it in and use the "pass through" ability to keep vaping.