Mooch can speak for himself, but I'm pretty sure he won't mind if I jump in here until he does.
Choosing which battery to use is always a choice between amp rating vs mAh capacity. You can't have the highest amp rating (30 amp CDR) and highest mAh capacity (3000mah) in a single battery; it tends to be one or the other. With a mechanical mod using subohm coils, the amp rating must always be your highest priority, and the mah rating will be your secondary priority. Depending upon how you vape, you must decide if you need a 20 or 30 amp battery.
Your Sony VTC4 is a 23 amp CDR and 21000 mah battery according to Mooch.
Sony VTC4 2000mAh 18650 Retest Results...a great 23A 2100mAh battery You could use coil builds down to 0.2 ohm with that battery. You could do better than that with a higher capacity (mah) longer lasting battery if you don't mind sacrificing 0.1 ohm with your coil builds.
In the interests of keeping things simple:
The Sony VTC6, Samsung 30Q, and LG HG2 each have
3000mAh and 20 amp CDR. Either would be a good choice as long as you keep your coil resistance at 0.3 ohm or higher.
Sony 18659VTC6 3000mAh 20A CDR
Samsung 18650 30Q, 3000 mah 20 amp CDR
LG 18650HG2 3000mah 18 amp CDR
With a 30 amp battery you can build down as low as 0.2 ohm, but you lose mAh capacity with only
1500 mah. The LG18650HB6, LG18650HB2, or LG18650HB4 with 1500mAh and 30 amp CDR are your choices. Note that as you gain amps you loose mAh (capacity); does that extra 0.1 ohm really matter that much to you to loose all that capacity?
LG18650HB6 1500mah 30 amp CDR
LG18650HB2 1500mAh 30 amp CDR
LG18650HB4 1500mAh 30 amp CDR
* Coil amp draw from
Ohm's Law calculations for Mechanical Mods:
1.0 ohm = 4.2 amp draw
0.9 ohm = 4.6 amp draw
0.8 ohm = 5.2 amp draw
0.7 ohms = 6 amp draw
0.6 ohms = 7 amp draw
0.5 ohms = 8.4 amp draw
0.4 ohms = 10.5 amp draw
0.3 ohms = 14.0 amp draw
0.2 ohms = 21.0 amp draw
0.15 ohms = 28 amp draw
0.1 ohms = 42.0 amp draw
0.0 ohms = dead short = battery goes into thermal runaway
A Beginner's Guide to Your First Mechanical Mod
- Covers the differences between a mechanical vs. regulated mod, essential safety accessories, optional safety accessories to add layers of safety to your mech, routine maintanance, use of proper batteries, proper ventilation, low resistance vaping, and faux hybrid mods.
Explain it to the Dumb Noob: Ohm's Law Calculations
- As simple as it is to use, some people have a tough time grasping the concept. Warning: Includes graphic photos of mod explosions.