Dangerous!! At .1 ohm you are running at 22 amps with the Samsung 25r. It's a 20a battery. I have two and they last a while and are okay vaping above .25 but I wouldn't push it any further. I use vtc5's which about 30A or LG hg2's which are also 30A for ohms in the .1 arena. Better safe then sorry.. I keep hearing this and I must agree as I own all three types. Samsung, LG and sony. Those are your good batteries. Everything else is either rewrapped or fake. Always test your batteries and buy from trusted dealers with about good reputation. I don't care how old this post is. People will see this. Go to stream engine and use the proper battery calculators, ohm calculators etc to assure safety. Always vape responsibly.
0.1ohm build only pulling 22 amps? Don't know what formula you are using but the most basic for mech's is Voltage/Resistance=Amps and a fresh charged battery is 4.2v
4.2v/0.1ohms=42amps
even at nominal rated voltage of 3.7v
3.7/0.1=37amps
22amps X 0.1ohms=2.2v <---Here is adding another level of dangerous, running a Liion 18650 below 2.5v deteriorating the cathode and anode copper into the electrolyte and risk internal micro-arcing
Go ahead, break out a calculator and double check the math
Your information on the VTC5 and HG2 are also skewed out of spec, VTC5 has always been 20amps, the VTC3 which everyone selling Sony Batteries back 2 or 3 years ago assumed the whole VTC line matched the VTC3's 30amp rating, but here in 2017 we've learned the 5 is 20, the VTC4 is about 23amps, and the VTC3 though rated at 30amps can really only achieve 28amp Continuous. The LG HG2, manufacturer rated at 20amp Continuous, independent professionally tested max 18amp CDR. For most intents and purposes for safety, most of us here preach using the CDR of a battery not their pulse discharge as there is not standard between manufacturers to actually be consistent what signifies a pulse discharge (examples 40amp pulse at 1/10th a second or 60amp pulse at 1/2 second before the battery wants to shift down to CDR without ramping up internal temperature and pressure), CDR is a known standard and can be reliably operated at the entire battery discharge.
Lowest build I suggest on a single battery mech is 0.25ohms, doesn't matter the battery used be it a 20amp Samsung 30Q to a 25amp Sony VTC5A to a 30amp LG HB6 as long as the battery has at least a 20amp CDR.
Dual Battery Parallel Mech Box in the 0.11 to 0.14 lowest
Dual Battery Series about 0.55ohm lowest
Sorry on the call, but as you stated, old thread or not, some new vaper will see it, needed to add some corrections and explain out my reasonings and where I base my opinion upon them for safety.