VapingBad
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Post by VapingBad on Dec 30, 2016 21:38:31 GMT
I just did this graph for the conservative estimate of 85% efficiency and hope it will help you, each line represents the power level you vape at, it is the power per battery so for a dual battery mod like yours double the power value. You can see that if the mod lets your battery drop very low it takes a quite lot more current.
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VapingBad
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Post by VapingBad on Dec 30, 2016 22:17:58 GMT
Sorry, it been an hour since I felt I had to correct potentially dangerous posts in this thread and although the authors have been online they have not edited them so I fell I have to report them (the posts not the ppl). I have never done this before and realise they were in good faith and just trying to help, but I feel really sh1tty doing it so don't want to be underhand about it, it is really nothing personal it is just about safety.
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jtc
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Post by jtc on Dec 30, 2016 22:20:15 GMT
Your such a star VapingBad So the short and curlies is he can do up to 85w safely
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jtc
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Post by jtc on Dec 30, 2016 22:22:44 GMT
Sorry, it been an hour since I felt I had to correct potentially dangerous posts in this thread and although the authors have been online they have not edited them so I fell I have to report them (the posts not the ppl). I have never done this before and realise they were in good faith and just trying to help, but I feel really sh1tty doing it so don't want to be underhand about it, it is really nothing personal it is just about safety. Erm For clarity have I posted anything wrong here please?
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VapingBad
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Post by VapingBad on Dec 30, 2016 22:22:52 GMT
Your such a star VapingBad So the short and curlies is he can do up to 85w safely Probably a bit more, but I don't have the board spec so staying conservative.
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jtc
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Post by jtc on Dec 30, 2016 22:32:27 GMT
Your such a star VapingBad So the short and curlies is he can do up to 85w safely Probably a bit more, but I don't have the board spec so staying conservative. So as the alien does 220w which batteries as a pair can handle 220 safely out of interest please?
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VapingBad
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Post by VapingBad on Dec 30, 2016 22:33:12 GMT
Sorry, it been an hour since I felt I had to correct potentially dangerous posts in this thread and although the authors have been online they have not edited them so I fell I have to report them (the posts not the ppl). I have never done this before and realise they were in good faith and just trying to help, but I feel really sh1tty doing it so don't want to be underhand about it, it is really nothing personal it is just about safety. Erm For clarity have I posted anything wrong here please? No, I am not trying to single anyone out because the advice was well meant and it is a widely held belief, but it gets to me because VW came out in 2010 and this wrong info is still getting repeated by so many people not just here.
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VapingBad
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Post by VapingBad on Dec 30, 2016 22:41:15 GMT
Probably a bit more, but I don't have the board spec so staying conservative. So as the alien does 220w which batteries as a pair can handle 220 safely out of interest please? IDK, but thinking of it as 110 W per battery make it easier, a lot depends on the mod efficiency and the low voltage cut off, but that could make it over 50 A and I don't know any batteries with a continuous current rating anywhere near that and you would have to rely on the pulse current rating. The problem with that is there is not standard time for a pulse, if it were 10 seconds it would be OK, but it may be less than a second, I think they vary between about half a second to a couple of seconds. Luckily mostly people will just get a weaker vape and knacker their batteries pushing them too far, but there is always a risk if you push the envelope to far.
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jtc
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Post by jtc on Dec 30, 2016 22:55:50 GMT
Yes it is a minefield really. That's why I ask someone like yourself about what I'm using. That way I feel safer. To the odd bods that do not access any information like on here though, well that's quite a scary thought
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VapingBad
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Post by VapingBad on Dec 30, 2016 23:33:31 GMT
Yes it is a minefield really. That's why I ask someone like yourself about what I'm using. That way I feel safer. To the odd bods that do not access any information like on here though, well that's quite a scary thought I just did this to show the figures, there are only 4 rows in each section to prove how badly wrong your answer can be using ohms for working out battery current draw on a VW mod. The 4 sections are like worst and best case guesses for the mod spec, the last two to show the watts for max current of 20 A from the battery. * low cut off is the min voltage your mod will let a battery cell drop to before backing off the power, the battery will be worked hardest near this limit.
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jtc
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Post by jtc on Dec 31, 2016 5:08:16 GMT
Yes it is a minefield really. That's why I ask someone like yourself about what I'm using. That way I feel safer. To the odd bods that do not access any information like on here though, well that's quite a scary thought I just did this to show the figures, there are only 4 rows in each section to prove how badly wrong your answer can be using ohms for working out battery current draw on a VW mod. The 4 sections are like worst and best case guesses for the mod spec, the last two to show the watts for max current of 20 A from the battery. * low cut off is the min voltage your mod will let a battery cell drop to before backing off the power, the battery will be worked hardest near this limit. I can't get my head around what's happening with that
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VapingBad
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Post by VapingBad on Dec 31, 2016 5:22:54 GMT
I just did this to show the figures, there are only 4 rows in each section to prove how badly wrong your answer can be using ohms for working out battery current draw on a VW mod. The 4 sections are like worst and best case guesses for the mod spec, the last two to show the watts for max current of 20 A from the battery. * low cut off is the min voltage your mod will let a battery cell drop to before backing off the power, the battery will be worked hardest near this limit. I can't get my head around what's happening with that Lots of things, most important is that if you use ohms to work out battery load for VW mods you get the answers in col 3 when the right answer is in the last column. Use ohms and you could think you only need a 15 A battery when you really need a 52 A one, not splitting hairs here it is completely wrong and at worst potentially dangerous. The other main point is while you guys ask for a simple answer it is impossible because because SMOK don't release the spec as far as my google skills go, it is really not me being difficult or trying to be clever. For 220 W it could try and draw 37-59A from your battery, or the bottom two sections say a 20 A battery could do between 85 and 114 W, just don't know because they don't give you the info. But the figure I gave for conservative should be safe, it is probably better but... I really don't enjoy doing this, I feel like a party pooper and ppl think I am just being a PITA, I put the numbers is so other people can check if I'm wrong and I am sometimes and not to invite my head hurts replies, sorry if it hurts but I didn't set the laws of physics and can't change them to make it easier or send aspirin over the internet, it is what it is.
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jtc
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Post by jtc on Dec 31, 2016 6:30:07 GMT
Hey it ain't your fault I'm thick VapingBad I really appreciate your time and effort and thanks for putting it in simple terms for me. I think we all agree safety with batteries is paramount so sir, you're a good guy
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VapingBad
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Post by VapingBad on Dec 31, 2016 6:40:09 GMT
You are not thick jtc you always ask questions when it is not clear like every smart person would , we all have thing that we are better or worse at, just bagging on as it is important, effects most of the members here and there is completely wring info ding the rounds 6 years after it's sell by date.
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Post by jtc on Dec 31, 2016 6:52:44 GMT
I think the really wrong people are manufacturers who produce mods that take things to the extreme with batteries. If the alien was a 150w then that would be far more acceptable imo. Now if they want to make a 220W then it should be 3 batteries I say like my Rolo's
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