eVic - how about lifting the voltage/wattage in next update?

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Brokil

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There are a couple problems with that. Part of it is software that keeps you from trying to get further than 5V, so it is definitely on joyetech to remove the software limitation if they so choose to do so.

The problem is every battery regardless of type has an "optimal" voltage and a range of "safe" operational voltages.

They could probably safely get up to 5.2~5.5 Volts safely. Probably. But you have to understand that batteries have limitations and standards for reasons; pushing them beyond their safety boundaries is at your risk. And yes, they were unable to achieve the 6V output, likely due to either limitations on the battery or their hardware (that is unknown to me because I am too lazy to go read and find out the exact reason). It is their theoretical max.

I have not personally gone out to test the safety specs on any 18650 battery in regards to voltage ranges. Nor do I plan on doing so because it is dangerous to do outside of a lab with the proper equipment.

Just my :2c:
 

Jeremy Evans

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I'm gonna put 113 octane in my Mazda 3 and see what happens... bad idea.

The hardware components on the board have specific limitations, it sucks but sometimes you have to live with the software limitations put in place to safeguard the funtionality of the product and your saftey

Actually your car would run fine you would just not be running at the Optimal A/F ratio to maximize the detonation resistant qualities of a higher octane fuel, you would just be running incredible rich. Sorry I'm a car guy, bad analogy
 

AnsonJames

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2012 Newest Wholesale Original Joyetech eVic, View evic, joyetech Product Details from Guangzhou Xuanyi Lighting Co., Ltd. on Alibaba.com

Original release(china info)
You could possibly get an original 1.0 firmware to work - if you could find one. However as far as I know everything in finalized production runs was throttled back. Initial testing of early Euro releases showed as high as 13w.
And I never stated any specific figures. i.e. 15w/Xv - but joyetech did:glare:

ETA - non of this would help the original poster. 3.0ohm coil would require 6.75v to achieve 15w

View attachment 178886

Phil Busardo couldn't get the Evic 1.0 to get to 13 watts with the V1 firmware.
From what I've read so far, the voltage and wattage is hardware restricted as opposed to being a software issue - no amount of firmware updates can change this.

You can buy decent buck/boost regulators that have 10 amp limits for less than $10, it's not a difficult thing to achieve high voltage/wattage with a single battery.

The limitations are very apparent when using rebuildables on the Evic.
 

AnsonJames

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There are a couple problems with that. Part of it is software that keeps you from trying to get further than 5V, so it is definitely on Joyetech to remove the software limitation if they so choose to do so.

The problem is every battery regardless of type has an "optimal" voltage and a range of "safe" operational voltages.

They could probably safely get up to 5.2~5.5 Volts safely. Probably. But you have to understand that batteries have limitations and standards for reasons; pushing them beyond their safety boundaries is at your risk. And yes, they were unable to achieve the 6V output, likely due to either limitations on the battery or their hardware (that is unknown to me because I am too lazy to go read and find out the exact reason). It is their theoretical max.

I have not personally gone out to test the safety specs on any 18650 battery in regards to voltage ranges. Nor do I plan on doing so because it is dangerous to do outside of a lab with the proper equipment.

Just my :2c:

I have devices that can get to 6 volts on a single AW 18650 using standard resistance - nothing unsafe about it.
 

Brokil

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I have devices that can get to 6 volts on a single AW 18650 using standard resistance - nothing unsafe about it.

I was just simply saying there are a lot of things that can factor into it; from manufacturer to hardware itself. And AW 18650 has several different types and mAh ratings. And even their batteries have a range they are meant to be operated at :p

Operating outside of those ranges is still at your own risk. Just because you can operate outside of that range or beyond does not mean it is safe lol. Just means it can be done.
 

Big Screen D

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I have devices that can get to 6 volts on a single AW 18650 using standard resistance - nothing unsafe about it.

The EVIC comes with a Li ion battery. Joyetech chose mAh (charge life), over high drain which would be needed for anything much over 5v. It is for this very reason that a Provari recommends IMR batteries. You can use Li ion in a Provari, but it will not work properly in it's upper range of operation.
 

crxess

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So, stupid question from new eVic owner -- several people mention 11 watts; I can't seem to get mine higher than 10 (11 is about where I want to be). I was able to set it to 10.4 with the firmware that was on it when I bought it (1.1?), but I flashed it to 1.3, and now don't seem to be able to get above 10.0

That would be your 5v limit kicking in. Need to change coil resistance. True 2.2ohm or lower.
 
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