Huge nemesis volt drop

[imb1610]

So my nemesis has always hit weak since i got it right not it is my only source of vape i finally decided to measure the volt drop on it with a multimeter (i did buy the inline volt meter from fast tech not good for subohm builds)

The nemesis in question was purchased through fasttech and is the specific model that has over 1000 reviews (found HERE)

Parameters- Measured twice with a fresh newly charged pair of batteries on each time with a brand new build of .38ohm coil's after thoroughly disassembling washing(with dish soap and water) and rebuilding. Using the TOBH clone atty for both tests.
(Stabilization refers to once the numbers stop heavily fluctuating on my volt meter the initial number preceding stabilization are the lowest and highest values i get on multimeter)

Results Panasonic CGR18650CG charge of 4.18- (A)2.9v-3.2v once stable it was around 3.1xx-3.2xx (B) See test A(same results)

Results Sony VTC5 charge of 4.2- (A)2.2-2.7 once it stabilized it was around 2.3xx-2.3xx (B) 2.3-2.4 after stabilization 2.4xx-2.4xx

This seems absurdly high to me I have bought some magnets to replace the spring's that come with this nemesis will that lessen the volt drop? What else can i do to salvage this mech? the way it sits right now is nearly useless to me as the volt drop gets me less than 30 watts at .3(which i would imagine may possibly have a worse volt drop)

 

[dannyrl]

The switch magnets should lessen some of the voltage drop, but I couldn't tell you how much. You're losing a lot of volts at the threads and springs. I'll speculate that since it's a clone, the tolerances in the threading isn't the greatest and so the thread contact isn't maximized. If you get some kind of conductive paste, it may help lessen the voltage drop as well.

As you go down in resistance, you're demanding more current from the battery. As the battery tries to supply this current, the internal resistance of the battery will actually increase causing a larger voltage drop.

It is weird that you get such a huge voltage drop with the VTC5. I run a .28ohm build and I get about 3.5 - 3.6 volts under load with both of my VTC5s in my Sentinel M16. If you have a friend with a mech, ask if you can test your VTC5 in their mod and see if you get the same drop. If so, I'd ask the vendor for a new one if you still can.

 

[imb1610]

The switch magnets should lessen some of the voltage drop, but I couldn't tell you how much. You're losing a lot of volts at the threads and springs. I'll speculate that since it's a clone, the tolerances in the threading isn't the greatest and so the thread contact isn't maximized. If you get some kind of conductive paste, it may help lessen the voltage drop as well.

As you go down in resistance, you're demanding more current from the battery. As the battery tries to supply this current, the internal resistance of the battery will actually increase causing a larger voltage drop.

It is weird that you get such a huge voltage drop with the VTC5. I run a .28ohm build and I get about 3.5 - 3.6 volts under load with both of my VTC5s in my Sentinel M16. If you have a friend with a mech, ask if you can test your VTC5 in their mod and see if you get the same drop. If so, I'd ask the vendor for a new one if you still can.

Unfortunately it is FAR too late to request a replacement since i have owned the device 3months and as for my friends i am the most well informed individual on ecigs period they dont own mechanicals and i just got them to transition to rebuildable atty's not too long ago they were still using carto's (too each his own they were complaining of cost lol) I specifically bought this nemesis because the reviewers and a person on youtube claimed to have an extremely low volt drop. I used Noalox not on the silver contact pins but all the other threads and it boosted performance tremendously all the way to 2.9-3.1. I have read others claiming that noalox is not the best conductor but if you could point me to any paste that may actually be better or more appropriate i would greatly appreciate it. This is my 1st mech mod and am waiting on an IPV 2(im one of the first ones in line )

 

[dannyrl]

Unfortunately, I can't direct you towards any specific product because I personally don't use anything on my threads so I can't vouch for their performance.

NOALOX has zinc dust suspended in it which helps conductivity a little bit. But the product was actually designed to prevent Aluminum Oxide (hence the name "NO-ALuminum-OXide") from forming on electrical connections which would inhibit current flow. Since your Nemesis is Stainless Steel, Noalox actually isn't designed for the application you're using it for. The product will still help prevent corrosion, but since your mod isn't made of Aluminium, I wouldn't waste anymore money on it.

Here's something you CAN try and (in theory) should help conductivity immensely: using Silver Conductive Grease on your threads and firing pin. There are lot's of Silver greases out there that contain up to 99% silver. If applied to the threads of your mod, the grease should fill up the spaces in your threads and help with current flow. HOWEVER, do this at your own risk. Because of how conductive this stuff is, you could create an unintentional short somewhere. Also, this stuff can be pretty expensive, like tens of dollars for only a few grams of this stuff. I can't guarantee results because I've never tried it myself, and I can't find any other info about it for use on e-cigs on the web. So take this info with a grain of salt.

Good luck!

 

[imb1610]

Well i got my magnets today(very effing fast for fasttech :l) switch definitely feels different the voltage meter is reading volt drops on sony vtc5 @ 3.3-3.4 MUCH better still not where i would like to be at guess thats what i get for going cheap maybe in like 3-6 months once they release a 26650 that has a continuous 50A discharge i will buy another mech and try again this one failed me (cant invest any more on it saving up for that 100w mod by sigelei)

 

[chesty]

post a picture of the vtc5 battery you have, negative post, positive post, wrapping, etc.
also, where did you get your battery from?