Np… Doing it now. =)
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Thank you! I will forget that in 3 days most likely… 
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Looks like you got it squared away, this forum moves at light speed…to infinity and byond!
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You helped and didn’t even know it! I went and looked at your N1 review to see if you tore yours down and the pictures totally helped me see where to pry into to unclip the sled. So thank you!
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Awesome, I am glad it helped 
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Well, as @anon96069639 pointed out, it was a simple and quick fix. What I don’t get however is how it happened. It seems like a stress break. But it doesn’t appear to be because the wire was too short.
The only thing I can think of offhand, is that perhaps it was jostled after it was soldered in place, but before the sled assy. was actually installed? (Thinking about in an assembly line environment…maybe it got hung on something just enough to weaken it [as it was tossed into the bin], without actually breaking it, until additional stress put it over the line…)
The other thing I noticed was that the wire itself is super thin (even for a monitoring circuit). There was another area (same wire) that had a noticeable crease in it, from just being shoved in (wherever it landed) with the rest of the sled assy., even though I saw *dedicated wire guides on the under side of the sled.
Two tiny, yet simple & cheap strips of tape (over the wire, in the guides) would easily have prevented this from happening in the first place. So I can easily see this being a problem for more users in the future (if this is not a one-off accidental omission).
Further, I would have replaced the wire altogether with a slightly larger gauge for “insurance” for @VapeyMama, but sadly, I wasn’t at home with access to my full bench and resources. 
I will say though, that for the most part, I’m pretty pleasantly surprised with the overall product, and very impressed with the chassis and heatsink mount setup.
Another thing I noticed right off the bat (once it was working again) was that it read the coil resistance really well, and repeatedly so. Even after firing the atty on another mod, removing it while still warm, and instantly (well as fast as possible anyways, less than 15 seconds lol) putting it on the N1 Pro, it read the correct resistance. Doing this with my Cuboid (and others) renders an increased resistance of .03-.05ohms! The N1 Pro read it at 0.19, each of the three times I tried it.
I know at least one of those times I had the batteries out for a while… So I’m not sure if this has an “atty memory” feature or not, but I would think having batteries out would negate that anyways (since I haven’t yet seen a mod, even one with a clock, that has implemented a “memory cap”). I could be wrong here, but either way, I found the real world functionality impressive!
I also saw some interesting similarities with Sigelei, and another brand (I can’t recall ATM), so there’s more curiosities afoot. But enough of my ramblings for the moment. (I knew there’d be at least a couple folks who are “inquisitive”…)
Apologies to those I bore. 
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Well. Son. Of. A. Bitch.
My other N1 Pro just did the same damn thing. Was working perfectly, went to swap out the batteries, and there was the low battery warning. Opened it up and the little red wire had come loose just like the other one. Ugh! 
@Sprkslfly…I might need you again…
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Sometimes you see, what you just don’t want to.
Sorry for the bad luck VM. =(
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I know it’s been a while since I updated this (Sorry about that!), but I figured it would be nice for everyone (especially Vaptio) to see the piece of wire that caused the failure.
I plan on doing a little “review” of the process I had to go through in replacing it (please note: serious soldering skills are needed, along with some specialized tools and very steady hands), but I needed to get a few things together before that.
For the moment though, my opinion is such that both of her failures were due to a manufacturing defect: the wrong choice of wire gauge.
The factory wire (for what I refer to as “the sensing wire” - or the wire that it appears is used for monitoring part of the battery circuit) is WAY too small for the needs of the particular application.
Whether that’s because of the physical pressure being put on it (by the battery sled), or the failure to sustain the amount of current being passed through it.
Her white N1 Pro failed near/at the battery connector. I can’t say for certain whether this was due to stress of too much current, or routing of the wire itself (which is what I originally thought). But it’s been nagging at me since I worked on it, that it could be due to being too small a gauge for the electrical needs. But I left that out of my comments.
Her black N1 Pro, actually had crushed the wire between one of the wire guides, /while properly installed, inside the wire guides built into the battery sled, and taped down/ (which I noted had NOT been done in the white unit). Even though the wire was properly routed and secured, the wire was just too tiny (delicate) for the job.
0.28mm translates to 29 gauge wire (according to the chart below), and anyone who has tried to make their own coils can attest, that’s some damned fine (small) wire to work with!
The outer casing (insulation) on the wire was almost double the thickness of the wire itself, but it’s a very soft casing, and doesn’t provide much protection in this instance.
I ended up going with a wire double the original size, and with a much more stout insulating jacket. (It measured out at 0.56mm, which puts it in the range of being a 23 gauge)
I don’t expect any further issues for VM in the black one (which has the upgraded sensing wire), and while I didn’t have access to my wire supplies etc when I had the white one, it should be interesting to see if there’s any issues in the future (although I did a bit of a reroute on the white one).
Anyways, the fault had been traced to the same sensing wire, regardless of circumstances. So I hope this helps other Vaptio N1 Pro owners!
Vaptio has a lot of great things going on in this device, but obviously need a little fine tuning in their product. Hopefully they’ve already revised things in production, but if not, hopefully this will help persuade them to!
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Thanks for sharing this, it’s extremely helpful information
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Thanks Pugs, I just did that with my Evic Primo. Little bastard was giving me weak battery warnings on full batteries.
Took out the battery and gave it a good bang on the desk. With the bottom of course since that’s where spanking occurs.
Works like a charm now 
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That didn’t last very long.
Tried spanking again but it has become immune to a good trashing 
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Have you looked at the 510?
(made sure it’s not bottomed out, the insulator is still there and in good order, or that the spring [under the 510] still has adequate travel?)
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Yep, that’s all good 
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The weird thing is that it works perfectly fine on a full battery. It started whining about low battery when there was a third of the battery used.
After the spanking it started to whine about low battery when there was about a third of battery life left.
I have gained a third of a battery by spanking. Maybe a cold shower will give me all of it
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Are you testing it with the back off or on with the low battery on screen
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