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Parallel batteries ?
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#1 (permalink)      11/11/2014 8:30:13 PM US Central   quote/reply + tips
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Nailseayts
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Parallel batteries ?
Should work right?
Always go full potato!
#2 (permalink)      11/11/2014 8:45:38 PM US Central   quote/reply + tips
AFfast
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On the kick 2 original probably, on a clone, well, not so sure.
#3 (permalink)      11/12/2014 5:12:14 AM US Central   quote/reply + tips
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Nailseayts
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Always go full potato!
#4 (permalink)      11/13/2014 4:36:27 PM US Central   quote/reply + tips
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Roby1959
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There are contraddictory opinions about usage of parallel batteries.
Pls take into account the batteries will never perform exactly the same, (mainly because of their internal resistance) so you're probably draining more current from one of the two.
The worst cases were found when the batteries were put in series, with overheat and gas emissions...but this is probably not the case :) In parallel the risk is to insist on one of the two compromizing its overall life.
It's also true that when the battery with more charge is emptied the part quota equivalent to match the lower one, they do tend 2 work in true parallel.

VapeSafe

Edited on 11/14/2014 at 2:11 PM. Reason:
#5 (permalink)      11/13/2014 4:55:00 PM US Central   quote/reply + tips
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Nailseayts
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Im making a box mod with 2 x 26650. Just not sure if i want to regulate it. I have a sig 100 watt so already have plenty of reg power. Just want a consistant vape. It would be easier to go un reg but i think i want some safety after reviewing my soldering job ( first time soldering....... not great XD ) to kick or not to kick ???
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#6 (permalink)      11/13/2014 5:15:34 PM US Central   quote/reply + tips
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Vapor
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You may consider something down this line:

here
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#7 (permalink)      11/13/2014 5:19:19 PM US Central   quote/reply + tips
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Nailseayts
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Would 8 amps be max or 11-14 ?
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#8 (permalink)      11/13/2014 5:23:23 PM US Central   quote/reply + tips
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Vapor
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8amps continuous
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#9 (permalink)      11/13/2014 7:53:34 PM US Central   quote/reply + tips
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Nailseayts
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I was going to install the kick in the box, but desided to just go un reg and keep the kick avaliable for other mods. Not bad for my first home made box bomb! =D and yes the kick works fine with parallel cells





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#10 (permalink)      11/13/2014 8:18:50 PM US Central   quote/reply + tips
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johnny_469
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Roby1959 wrote:

There are contraddictory opinions about usage of parallel batteries.Pls take into account the batteries will never perform exactly the same, (mainly because of their internal resistance) so you're probably draining more current from one of the two. The worst cases were found when the batteries were put in series, with overheat and gas emissions...but this is probably not the case :) In parallel the risk is to insist on one of the two compromizing its overall life.It's also true that when the battery with more charge is emptied the part quota equivalent to match the lower one, they do tend work in true parallel.But I would avoid that setup. Nailseayts it's personal point of view I liked to share.



Not 100% true but still a good guideline...

When used in parallel, the cells will each operate at nominal voltage (doubles capacity), and more amperage will be available. Unlike with series cells, you don't have to worry about marrying your cells because they will tend to balance each other out when discharged in parallel. All you have to do is make sure they are of the same capacity and output voltage nominally so there won't be a worry of over-discharging 1 or the other during use.

Woah, mama!
#11 (permalink)      11/13/2014 8:21:58 PM US Central   quote/reply + tips
JPBel
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The kick will work with parallel batteries, not sure if it can in serie.

@Roby1959
The problem in parallel is that the charge terminate as soon as the lowest capacity battery is full charge, the others will never reach full charge.
Batteries capacity must be the same for all batteries, same for the age of the batteries, lithium batteries lose capacity when aging.

More often than other, when one battery start to fail, it slowly drain the other(s).
But if one of them was to fail in full short circuit mode and the others were full charge, a problem i never heard of, things could get very ugly.

It also take more time to charge, for safety reason.
The charging rate should not be more than 1C of 1 battery's capacity as it could be dangerous if 1 or more batteries were to fail in open circuit mode.

The advantage is that you will get more output current.



The problem in serie is that it need a charge balancer otherwise some battery(ies) could over charge.
It is dangerous to charge lithium batteries in serie without one.

Also, the output current will be lower than what a single cell can provide, the resistance of the batteries add up.
If one battery fail in short circuit mode it is still safe.

Edited on 11/13/2014 at 8:29 PM. Reason: