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Some Voltage Questions


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I USE BOTH voltage, a 5.0v device with a 2.0 carto is TOO MANY WATTS (12.5is), you get a slight burnt taste, carto lasts 2-3 days a 5.0v with a 3.0 standard res carto is still pumping out 9+ watts, almost too much for me. buy a $10 5v passthrough to try it out first before you spend all that cash..... i love my 3.7v SD with 2.0 cartos, its about 8 WATTS, PLENTY OF VAPOR!!!

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You don't want to use LR attys at 5V (it would most likely pop the atty). A 1.5ohm LR atty at 3.7V will give you about 9 watts (heat). A 2.2ohm atty (standard Joye 510) will give you about 11 watts. While it's not he same, it's close. A 3 ohm atty at 5V will give you about 8 watts.

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Some liquids are better at higher voltage or lower resistance as well.You just hasta experiment ,the 5 volt passthrough is a very good idea and it may keep you in business during a failure of batteries or charger.I would also recomend a wall wart power supply for it.

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Variable voltage is the key. You can buy a 5V box mod and use 510 standard resistance (3 ohms) atomizers which makes for a great vape. But I have purchased 510 SR atomizers that are as low as 2.2 ohms and that is just way too much heat for a 5V box mod. In fact, most 2.2ohm atomizers will just burn out instantly at 5 volts.

No two atomizers are the same so I may go from a 510 SR atty that is 3.0 ohms on to a 510 SR atty that is 2.5 ohms. With variable voltage, I can adjust the voltage so that my preferred wattage output remains the same. These days I am puffing away on a 510 LR atomizer at 4.0 volts which feels similar to a 510 SR atomizer (3ohm) at 5.0 volts.

You can just get an Ego battery and slap an LR 510 atomizer onto it and it will vape a whole lot better than a SR 510 atomizer, but Ego batteries don't handle the load of LR atomizers so well and don't really deliver more than 3.3 or 3.4 volts.

Edited by Emile
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It really just depends on what you plan to use most of the time. For me, knowing I like LR cartos, there is no reason for variable voltage... 3.7v / high drain batts work just great on my mods. Now, if you plan to use different attys, then I would agree a VV MOD would be helpful. Although the few vv mods I have rarely even get changed from where my 'happy spot' is. Not sure I would recommend them to everyone as a must have... but a nice optional piece of vape gear for sure.

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There is more to the VV mods like my Provari than just being able to adjust the voltage. When I set my voltage at 4.7 volts, it stays there until the batt is out. Other devices that just have a battery and switch will see a voltage drop ( thus drop in vapor production) throughout its cycle.

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