How won't it? Shouldn't pull that much unless you ask it to.
Well, it may boot the DNA30 chipset up and allow you to use the device for a bit.
But, I also have a few thoughts as to why anyone would desire a 6.8A battery in a device that can draw 12A.
!.) The NCR18650B is not a high drain battery. The DNA 30 needs a High drain battery. Why? A high drain battery will exhibit much less voltage sag under use.
2.)Why should you care if you are only going to use a DNA30 device @ low wattage settings?
As your battery voltage drops in use, the chip is going to use more current to provide the wattage you have the device set to. This will draw more amperage from your battery as it depletes. So you may start out demanding 5A from that battery when it is at 4.2v, when the battery is depleted to 3.6v, you are going to be asking for more amperage than that battery can provide.
The NCR18650B seems like it has a lot of capacity. It does technically but not for high drain aplications . In fact, fully half of it's rated amp-hours are provided between 3.4 and 2.5v when used with a 5A discharge.
I know for a fact that my Hana DNA30 device will start rebooting and not functioning properly when my battery is at 3.5v. It will not take a NCR18650B long to reach that voltage.
Have a look at this discharge test @ 5A:
Test of Panasonic NCR18650B 3400mAh (Green)
Now check the same discharge time for the Sony VTC5:
Test of Sony US18650VTC5 2600mAh (Green)
Note how much longer that puny 2600 mAh sony stays in a usable power range of 4.2 to 3.5v when discharged at 5A.
Hours instead of minutes!
So i guess if you really want a 30w device but are only going to ever use it at it's lowest settings then yes, That panasonic will power the chip, barley, and not as long as it's 3400mAh rating suggests it will.
I have to ask however, why would you buy a 30w device, put a battery with half the maximum continuous amp rating in it and then only use that device at it's lowest setting?
Why not buy another SID?
Bottom line is the NCR18650B is an OUTSTANDING flashlight battery. It is not a great personal vaporizer battery and will not provide its rated amp hour capacity in this application.
I have used the NCR18650B in my SID. It worked ok. I have also used a NCR18650PF in my SID. It powered it for just as long as a NCR18650B. Low, Steady drain is the NCR18650B's forte. Not high power pulse applications like a personal Vaporizer.
The 18650B does power my Cree LM-6 based flashlight for an incredible amount of time however.