misfire or voltage drop/sag?

[the_noise]

Got a couple of questions guys. It's kinda complicated (I think) so please bear with me.

I just got a vv box mod that uses a step down linear regulator, and runs on 2 14500's. When you press the fire switch, the display will first show 888, then go blank, show 3 red lines, then display the voltage. As long as it's being fired, the display will refresh every 3 seconds or so starting from the going blank part (not the displaying the 888s).

I noticed that sometimes, my drag cools for a split second in the middle of firing, and the display refreshes to the 888 part. I think this means that the PV stops firing altogether for that split second and reactivates because the switch is still pressed.

So here are the questions.

Is this a misfire or a voltage drop/sag?

I'm using Trustfire Flames which are protected and have a stated mah of 900 (although I read somewhere actual mah is closer to 800). Will using high drain IMR's make a difference and solve this if it's a voltage drop/sag?

Please bear in mind that I don't know much when it comes to electronics, so lingo that's too technical will just go above my head

TIA!

 

[Maximillian]

Heyas the_noise,

I'm fairly new to mods myself, so I'm not really sure. If the voltage drop is being caused by the batts protection circuit cutting in, then I'd guess that the imr's would solve your problem. If it's caused by a protection circuit on the mod cutting in, I'd guess not. But, these are just guesses.


Maximillian the Moderately Mischievious

 

[the_noise]

This is exactly what I had in mind. I'm not sure if the mod itself has a protection circuit that would work like this though. The modder has told me it might be caused by heat due to long drags, but I'm not really too sure since it's happened when I've vaped for a few hours, it's happened during my first vape for the day, it's happened when the pv is still fresh from being rested, it's happened after a few hours of use. And it doesn't happen that often either, maybe 3-4 times a day. Considering I vape about 3-4 ml a day, that isn't all that much.

 

[Nomoreash]

I have no idea what your meter is doing but if you're using a LR atty with it then most likely your atty is pulling more current than your Trustfire Protected Batteries can handle, they should be ok for regular ohm attys which you shouldn't really need to use LR with a vv mod anyway. I usually stick with around a 3ohm atty or carto that gives good voltage range without pulling a while lot of current.