New Hot: eGo Variable Volt/Watt APV Back In Stock (Limited Supply) only $39

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junkman

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Does anyone realize that constant voltage= constant wattage on a certain Ohm atomizer? This is what I'm not understanding about these new "Variable Watt" devices. If you vary the watts, you are varying the voltage so what is different about them with everyone getting on the train?

If you say you have a 2.4 Ohm coil, and you put 4 volts to it you will end up with a certain amount of watts. If you change the "watts", you've only changed the voltage that you are putting to that coil.

So a 2.4 ohm coil at 4 volts is going to produce 6.6 watts at 1.6 amps.

Now if you use the "variable wattage" and select you want 10 watts.. you are now at 4.89 volts and 2.04 amps.

So really this "Variable Wattage" is just another term for "variable volts" if the APV can produce a steady voltage of 4 volts, you will have a steady wattage of 6.6

I guess I don't understand the confusion.

VW is a refinement of the system. Both vary power. VV varies the input (voltage) VW varies the output (watts). Of course increasing input increases output and vice versa. So, while there is no difference in the end, VW does have a slight advantage in that switching resistances results in the same output whereas VV doesn't. It doesn't mean you never have to adjust the power, it just means that you are likely to be closer to the correct power when you switch resistances, without doing calculation and adjustments beforehand.

It is just a nice refinement and it just makes more sense for our purposes to control output power instead of input power, therefore people buying new variable power devices are logically looking at VW devices. It would however be irrational to buy solely on the basis of a VW device over VV device as (in my mind at least) other factors are more important, such as quality, durability, etc.
 

KevinNash

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There is so much variance in 18650 batteries length and width you cannot really fault a manufacturer for not being able to be compatible with all of them.

I also read elsewhere that the very common Trustfire 3000 mAh doesn't fit in this APV, apparently not because of the length but because of the diameter ( 18,6 mm in this Trustfire case ).

Can someone confirm that ?
 

Stownz

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I guess I don't understand the confusion.

VW is a refinement of the system. Both vary power. VV varies the input (voltage) VW varies the output (watts). Of course increasing input increases output and vice versa. So, while there is no difference in the end, VW does have a slight advantage in that switching resistances results in the same output whereas VV doesn't. It doesn't mean you never have to adjust the power, it just means that you are likely to be closer to the correct power when you switch resistances, without doing calculation and adjustments beforehand.

It is just a nice refinement and it just makes more sense for our purposes to control output power instead of input power, therefore people buying new variable power devices are logically looking at VW devices. It would however be irrational to buy solely on the basis of a VW device over VV device as (in my mind at least) other factors are more important, such as quality, durability, etc.

I would normally agree, as this debate stems back to the Provari vs Darwin debates. Things have changed now though, its the RBAs that made me start looking for a VW unit. The RBAs out there, are absolutely insane when built right, but the genesis type ones have issues with coils shorting against the SS wick. Sometimes you loose 1 coil, sometimes its 2, but the effect is the same. You have to up or down the voltage to compensate or take the unit apart and fiddle with the coils till they all hit right. I chose to go VW, and when I loose a coil it automatically adjusts for me. This circuit board works so well, I don't even know when I loose a coil. I set it at 10 watts, and vape for days: something my beautiful provaris can not do.
 

jonbkk

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I'll wait until my next order so you don't have to pay for shipping. Thanks for your reply, I had no doubt you would take care of this.

We are sorry for the problem of spring. we can send you a new free spring. please sumbit a ticket.:)

Btw, sorry for the delayed reply. I will check the forum more often. :)
 

jackbox

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I'll wait until my next order so you don't have to pay for shipping. Thanks for your reply, I had no doubt you would take care of this.

@jonBKK - If you place another order with Health Cabin I sincerely hope you receive it. I know you got lucky on your other order and got it in three days. My first order was returned to EMS by Chinese custom's security and never left China. My reshipment scanned out of Guangzhou on November 15th and appears to be doomed to the same fate. If that shipment gets returned to HC as the first one did I will be expecting HC to refund my order. NewSunshine in another thread has even advised against ordering from Thailand now as they are having problems getting EMS packages out of China. You were the lucky one whose package was allowed to leave China. Here is NewSunshine's comment from the other thread.

We strongly suggest you not to order from our site for a while, because recently we do have a problem getting orders to reach your customs via ems smoothly.

Here is the scan in Chinese language with translation that show the package was never allowed to leave China by custom's security and was returned to HC. No batteries or liquid, only two of the VV/VW mods, coils, vivi heads, vivi metal bases and drip tips. I cannot understand why Chinese custom's security would block such an order from leaving the country, but that is what happened.

2012-11-11 02:56:00 广州市 到达处理中心,来自安检
(The above line says returned to sorting center by "Security." It appears to have never left China.)

 
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newsunshine

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Apr 7, 2009
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Hi newsunshine, can aw imr 2000mah batteries fit this apv?

Thank you for your asking.
Sorry. we have no idea whether IMR 2000mah batteries fit this apv, because we do not have the batteries at hand. could you tell me its size, so i can answer your question?
 

shayf

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Oct 14, 2012
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Thank you for your asking.
Sorry. we have no idea whether IMR 2000mah batteries fit this apv, because we do not have the batteries at hand. could you tell me its size, so i can answer your question?
Could you please tell us what are the dimension range of batteries that can be used?
For example:
18650 -
Max Width 18.6mm
Length - From 66.7mm to 68.0mm

Thank you in advance.
 

Seven and Seven

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Oct 27, 2012
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Hi newsunshine, can aw imr 2000mah batteries fit this apv?

Yes they do. I'm currently using a nipple top aw imr 2000mah battery. I've also used 2 nipple top aw imr 18350's 700mah without any issues. The fit was a little tight using the 2 18350's but was still able to close the end cap pretty easily.
 
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