Making my own mod...in theory

[Jolly Boots Of Doom]

I just got access, THANK YOU THANK YOU THANK YOU!!!! I kept asking for advice and instead of saying "thats dangerous, don't do that." you told me what was dangerous and why! oh and you were right about the D amp limit, it is about 1a. Next question, in a pinch say the end of the world no NiMH batteries are available, how long until alkaline D Cells explode? how would I calculate it? if you put an amperage draw higher than the battery can handle it starts to vent, but in a vaping situation you are only shorting it for short periods of time and in theory it would work for a while before it would become an issue, but a catastrophic failure would make this mod effectively a pipe bomb, about 3 inches from your face... yeah shelling out the $35 for the NiMH is going to happen but I'm curious about the outcome of using alkaline D's

 

[LucentShadow]

I just got access, THANK YOU THANK YOU THANK YOU!!!! I kept asking for advice and instead of saying "thats dangerous, don't do that." you told me what was dangerous and why! oh and you were right about the D amp limit, it is about 1a. Next question, in a pinch say the end of the world no NiMH batteries are available, how long until alkaline D Cells explode? how would I calculate it? if you put an amperage draw higher than the battery can handle it starts to vent, but in a vaping situation you are only shorting it for short periods of time and in theory it would work for a while before it would become an issue, but a catastrophic failure would make this mod effectively a pipe bomb, about 3 inches from your face... yeah shelling out the $35 for the NiMH is going to happen but I'm curious about the outcome of using alkaline D's

Hi. I would not know where to start in calculating such a thing. I suppose the graphs in the datasheets.

I'd imagine that short bursts can be better handled by the chemistry of most cells than continuous draw. There has been much overzealous use of several types around here, and not many incidences reported.

I would not expect alkaline batteries to fail anywhere near as catastrophically as lithium-ions. Personally, I've never seen them do worse than leak their potassium hydroxide electrolyte, which is a caustic chemical. While they do create hydrogen gas as they age, and when abused, causing leaks from the pressure, I've never heard of them violently reacting or igniting. I still would not abuse them. End of the world, though? Go for it.

NiMH are well worth it, in the long run. They have replaced NiCd, for the most part, and are used in many high-drain applications. They are similar to alkalines, and are also much safer chemistry than lithium-ions. While they can be quick charged (less than an hour,) it's rough on the cells, so it's best to get a more conservative charger.

It still may not be a bad idea to put a blow-out plug on the opposite end of that tube, though.

 

[Jolly Boots Of Doom]

Thank you so much for your expertise and advice, now I will be able to make this safely, and I am working on a few other things that will also put some of this new knowledge to good use. Thanks again, I'm going to get to work on this as soon as my 510 connectors come in!

 

[Jolly Boots Of Doom]

So Final product photos! it works pretty well so far.