Advice - DNA30 mod or something similar

[vaporish]

Hi All,

Need to get a new mod as my tin mod has been playing up after a year, think its now giving up the ghost.  Have been looking at the dna30 clone mods or ipv v2 but don't know which one to go for, would prefer something that takes dual 18650 batteries for the extended run time as this is what my tin mod took and have been looking at the dovpo for this reason only.  I want to spend about £65, if a modder can do this for this price then iI'd be happy to go with that also.

Am I OK to use my current 18650 batteries in these mods or would I need to buy 30a batteries, I currently have efest v2 2000mah and torchy 2400 both 10a I believe, I don't build sub ohm coils but may delve into this in the future, my builds range from 1.5 -2ohms.

All advice appreciated

Thanks

[VapingBad]

IIRC Evolv recommend Panasonic CGR 10 A IMR up to 20 W and Sony VTC 30 A above 20 W, if you go for a 50 W deffo get the Sonys. Beware the purple EFests as they quote the max discharge rate instead of the continuous like most other battery manufactures, their 35 A are really 20 A.

There is a dual 18650 100 W due in Sept and someone will link to them soon.

Personally I would rather have a smaller mod and carry spare batteries than wait for a onboard USB charger to charge 2 x 18650s. The DNA clones seem to vary a lot in terms of the quality of the electronics and IMO that gives the SX an advantage if you can live with a 10 s auto cut-off (I can't). For that budget you could build a Hana clone with a real DNA, link.

[xs2man]

Your batteries will be fine. Even pushing 0.5 ohm coils at 30 watts (the limits of a REAL DNA chip) wont go over 10A.

[VapingBad]

Aug 19, 2014 14:12:59 GMT xs2man said:

Your batteries will be fine. Even pushing 0.5 ohm coils at 30 watts (the limits of a REAL DNA chip) wont go over 10A.

Evolv spec gives max input current of 12 A, would give that some head room on a clone.

[VapingBad]

A real DNA will reject a battery that is sagging too much, so your Efests will be safe, but may get rejected before they get down to 3.6 V. I would be wary of how well a clone protects you and your battery though.

[vaporish]

Thanks VapingBad for your response, I don't think I'd be comfortable building my own mod and to be honest don't really have the time with work etc to do so, I'm not one that's too fussed about the look of my device with Atty as long as it vapes well and I can take it out and about and not have to worry about it dieing on me which I could with my tin dual 18650, I'm just concerned that with a single 18650 its going to be dead within a couple of hours at 10-12watts.

[VapingBad]

Aug 19, 2014 14:26:03 GMT vaporish said:

Thanks VapingBad for your response, I don't think I'd be comfortable building my own mod and to be honest don't really have the time with work etc to do so, I'm not one that's too fussed about the look of my device with Atty as long as it vapes well and I can take it out and about and not have to worry about it dieing on me which I could with my tin dual 18650, I'm just concerned that with a single 18650 its going to be dead within a couple of hours at 10-12watts.

@ 10 - 12 W I guess I get well over half a day, maybe a day if I'm out and about from a 2100 mAh Sony and they do 2600 mAh (VTC5) now would do a day.  My battery usage seems to be quite high when I read what other members use, I vape 9-10 ml a day.

[vaporish]

Should I sell my current 18650 and buy new ones as they're still good only around 4-6months old, ideally I'd like to continue to use otherwise it seems a waste.

[VapingBad]

Aug 19, 2014 14:37:36 GMT vaporish said:

Should I sell my current 18650 and buy new ones as they're still good only around 4-6months old, ideally I'd like to continue to use otherwise it seems a waste.

I would keep them and see how they performed, I know a real DNA would just reject them (resets and wont fire) when they were too stressed, but don't know how the clones or SX perform, suspect the SX is much better than the DNA clones in this regard. 

If I vape at 22 W my DNA rejects 10 A batteries at about 3.625 V and 30 A at 3.450 V, it doesn't just stop when it hits a particular voltage it monitors the health of the battery.  At lower wattages these figures go down and at higher wattages they go up.  I would love to know what an SX mod does, anyone with one if you are vaping at medium to high wattage and it rejects the battery as empty do you get more time if you turn the wattage down?  And does it stop at different voltages for different spec batteries?

[boyofford]

VapingBad, with ipv with sx330 chip vtc5s and vtc3s are at about 3.2 or 3.3 volts (I forget exactly, but consistent) whether I'm vaping at 25watts or 50watts, don't go any lower than this anyhow.

[boyofford]

double post

[VapingBad]

Aug 19, 2014 15:13:29 GMT boyofford said:

VapingBad, with ipv with sx330 chip vtc5s and vtc3s are at about 3.2 or 3.3 volts (I forget exactly, but consistent) whether I'm vaping at 25watts or 50watts, don't go any lower than this anyhow.

Thanks, after watching the pBasardo videos at Evolv where they mention one of the design goals of the DNA is to look after you I think the SX have gone the other way and try and extract as much run time as they can and would probably reduce your battery life span. I don't know by how much though.  I think that makes it even more important to have a very high current battery in the SX and the one I trust the most Sony VTC.

[boyofford]

Aug 19, 2014 17:10:32 GMT VapingBad said:

Aug 19, 2014 15:13:29 GMT boyofford said:

VapingBad, with ipv with sx330 chip vtc5s and vtc3s are at about 3.2 or 3.3 volts (I forget exactly, but consistent) whether I'm vaping at 25watts or 50watts, don't go any lower than this anyhow.

Thanks, after watching the pBasardo videos at Evolv where they mention one of the design goals of the DNA is to look after you I think the SX have gone the other way and try and extract as much run time as they can and would probably reduce your battery life span. I don't know by how much though.  I think that makes it even more important to have a very high current battery in the SX and the one I trust the most Sony VTC.

Does do a few drags where it auto drops to 10watts first, maybe with battery with more sag issues it would do this more? I'd or thought so anyhow.

Does make me wonder about these upcoming SX 100watts devices that will use two 18650 batteries.
Afterall, guess they will run in parallel, so need to be same volts etc, wonder what safety features on chip there will be for this.

[VapingBad]

Aug 19, 2014 17:41:34 GMT boyofford said:

Aug 19, 2014 17:10:32 GMT VapingBad said:

Thanks, after watching the pBasardo videos at Evolv where they mention one of the design goals of the DNA is to look after you I think the SX have gone the other way and try and extract as much run time as they can and would probably reduce your battery life span. I don't know by how much though.  I think that makes it even more important to have a very high current battery in the SX and the one I trust the most Sony VTC.

Does do a few drags where it auto drops to 10watts first, maybe with battery with more sag issues it would do this more? I'd or thought so anyhow.

Does make me wonder about these upcoming SX 100watts devices that will use two 18650 batteries.
Afterall, guess they will run in parallel, so need to be same volts etc, wonder what safety features on chip there will be for this.

With the dual parallel batteries you should keep pairs together form new, but they would stay at the same voltage because their terminals are attached to each other.  If they were really out of balance the good one might end up constantly top-up charging the bad one and most of the current would come from the good one.  I am 99 % sure the board treats them as a single battery, so no added safety features, but nothing to worry about if have good paired batteries.  I don't like the idea of charging in parallel myself.

[boyofford]

Aug 19, 2014 17:49:21 GMT VapingBad said:

Aug 19, 2014 17:41:34 GMT boyofford said:

Does do a few drags where it auto drops to 10watts first, maybe with battery with more sag issues it would do this more? I'd or thought so anyhow.

Does make me wonder about these upcoming SX 100watts devices that will use two 18650 batteries.
Afterall, guess they will run in parallel, so need to be same volts etc, wonder what safety features on chip there will be for this.

With the dual parallel batteries you should keep pairs together form new, but they would stay at the same voltage because their terminals are attached to each other.  If they were really out of balance the good one might end up constantly top-up charging the bad one and most of the current would come from the good one.  I am 99 % sure the board treats them as a single battery, so no added safety features, but nothing to worry about if have good paired batteries.  I don't like the idea of charging in parallel myself.

If i get one I'll get new batteries for it for sure anyhow. Will just see how big it is, unlikely to use over 50 watts I've already got, would be good to have battery life though.