Nimh is looking better the more i research

[davido]

new to vaping, not to "improving productivity. i made my mark working for small businesses improving productivity, some process, some by "designing and building simple machines or implements to eliminate wasted human energy. high school education, a tinkerer, engineer at heart. von braun did not like the term scientist, they just think about it. we, engineers build it. AM I RAMBLING AGAIN. MUST BE OLD AGE.
3-4 AAA NIMH, THE WAY WE USE THEM AND THE AVAILABILITY. HOW CAN WE GO WRONG?

THANKS davido

 

[unloaded]

I made a 4x AAA mod in a 4x AA box. Works really nice and battery life it really good. You'd be suprised how much of a difference 1v makes. Mine was inspired by The Puck. Check out those threads if you want to be entirely convinced.

 

[WillyB]

new to vaping, not to "improving productivity. i made my mark working for small businesses improving productivity, some process, some by "designing and building simple machines or implements to eliminate wasted human energy. high school education, a tinkerer, engineer at heart. von braun did not like the term scientist, they just think about it. we, engineers build it. AM I RAMBLING AGAIN. MUST BE OLD AGE.
3-4 AAA NIMH, THE WAY WE USE THEM AND THE AVAILABILITY. HOW CAN WE GO WRONG?

That's easy, NiMHs just can't keep up with the way I vape, we need cells with much better drain/discharge capabilities. In that 1.5V rechargeable category NiCDs would work much better,

 

[sachiaiko]

Can you explain that more WillyB? (I have a Chihuahua named WillyB, dont hold it against me tho. he's really adorable, in love with our fully blooded French Bulldog and He'll follow her around. She has an OCD issue with the gravel and walks backwards in circles kicking the rocks behind her, Willy follows behind her all day long pouncing on the rocks she kicks and then at the end of the day he sticks his head into her giant ears and kisses her up. Seriously, big Lover. Any resemblance?)

At any rate, upon checking out this thread i did some research myself and started checking out some of the newer Nimh Batts and noticed that even the smaller ones have insanely high Mah ratings. Why is that? Is it because they can't put out the amount of power required for the purposes we use them for? Cause if you stacked 3 aaaNiMh batts you should end up with 3.6v but with a far higher MAH rating then a 14500 At least that's what it looks like with my limited understanding.

Pair that with the fact most of those LED flashlights come with the insert for aaa batteries and you have an potential for eliminating a step in the mod process all together. And the flashlight mods ALREADY give me a ton of trouble :groans: Dont ask me why. I am currently cursing my flashlight mod. At any rate. It'd be even neater to use the aa batts cause they have even higher mah ratings... Just seems like there is potential, and with the newer nimh batts they look good.

Admitedly, i'm totally ignorant of the subject, only JUST NOW getting into modding, only just begining to learn. I had no idea what LiPo meant until a few days ago. (I kept wondering what everyone was refering to) so its not like my deductions hold a lot of sway lol.

Be well

Sachi

 

[TomCatt]

Check out the Puck mod (link in my signature). With the NiMH you do get 'voltage sag' with vaping. Using a 'higher' ohm atty/carto compensates for this. For example, I have a 4AAA (1000mahs) Puck. Off the charger I get ~5.6V unloaded - NiMH batts will come off the charger at 1.4V. With a 3.2 ohm clearomizer the loaded voltage goes down to 4.7V. With this Puck I can vape most, if not all, of the day on one set of batts (~4mL of nicquid). I usually put fresh batts in my Puck in the morning, 6am, and loaded voltage will still be ~4.2 by 6pm. I like the higher voltage vape, so if I'm not feeling too lazy, will change to a fresh set of batts then. (I was feeling lazy tonight, still vaping on the same batts I put in this morning at 6am .)

 

[WillyB]

Research should be more that just comparing mAh among different battery chemistry, and 3 NiMHs will be completely useless for ecigs.

Look at this statement.

With a 3.2 ohm clearomizer the loaded voltage goes down to 4.7V. With this Puck I can vape most, if not all, of the day on one set of batts (~4mL of nicquid). I usually put fresh batts in my Puck in the morning, 6am, and loaded voltage will still be ~4.2 by 6pm. I like the higher voltage vape

This "higher voltage vape" is all of 1.5A and an anemic 6.9W. And to get that you have to deal with 4 cells and a clumsy double sized box? Turns out 7W is about the absolute max watts that can be had, irregardless of the atty/carto used with a 4 pack of NiMHs. Most folks turn to HV to increase their watts (Power/heat)

@ sachiaiko

You mentioned LiPo, they certainly have amazing discharge capabilities. But they should not be used in PVs, they are quite dangerous, both to use and charge and best used in RC stuff, not up against your face. And the odd flat pack form factor does not lend itself well to mods. I've only seen them used a couple times anyway. Some sort of protection is a must and if they start to bulge in the slightest, don't use them.

 

[TomCatt]

Research should be more that just comparing mAh among different battery chemistry, and 3 NiMHs will be completely useless for ecigs.

Look at this statement.

With a 3.2 ohm clearomizer the loaded voltage goes down to 4.7V. With this Puck I can vape most, if not all, of the day on one set of batts (~4mL of nicquid). I usually put fresh batts in my Puck in the morning, 6am, and loaded voltage will still be ~4.2 by 6pm. I like the higher voltage vape

This "higher voltage vape" is all of 1.5A and an anemic 6.9W. And to get that you have to deal with 4 cells and a clumsy double sized box? Turns out 7W is about the absolute max watts that can be had, irregardless of the atty/carto used with a 4 pack of NiMHs. Most folks turn to HV to increase their watts (Power/heat)

@ sachiaiko

You mentioned LiPo, they certainly have amazing discharge capabilities. But they should not be used in PVs, they are quite dangerous, both to use and charge and best used in RC stuff, not up against your face. And the odd flat pack form factor does not lend itself well to mods. I've only seen them used a couple times anyway. Some sort of protection is a must and if they start to bulge in the slightest, don't use them.

Willy, you pointed out that I said "I like the higher voltage vape" like I was calling this HV. Taken out of context, you would assume this. In context, it means 4.7 vs 4.2V. Personally, I consider 5V+ to be HV and I don't really like it; YMMV as they say.

And vaping at 3.7V with a 2 ohm atty/carto (which is better than most starter kits - 3.2V & 2.5ohm) is, as you have put it, an anemic 6.8 watts.

Clumsy? I find the double box of the Puck actually rather handy. I stand my Puck up on the mattress while watching TV in bed and it sets there quite nicely. When I have it setting on my desk and I clumsily bump it, it doesn't fall over. I'm not the worst solder-er (hopefully ), but I'm not great at it either. Using the double batt box design of the Puck gives plenty of room for a little extra 'spaghetti'; not to mention not having to cram mosfets and such into tiny spaces as a single AA slot.

I do plan on getting some li-ion batts soon and do some cramming ; now that I have some experience at modding. I don't ever expect to have the skills at modding that a lot on the Modders forum seem to have; but I have enough to satisfy me. And as a first mod - or in my and others cases, mods - the Puck has been wonderful. I leave my NiMH batts on the charger all day (and there's no one home ) and they're not in a bag or a metal box in case they explode.

Overall, the Puck gives an excellent vape (for me) and has the convenience and safety of the NiMH chemistry.

 

[pmos69]

Actually LiPos are used in a lot of commercial PVs.

 

[Creniker]

I don't understand why you have to sound so condescending willyb. I agree with you on most points, but I don't understand if you are accidentally sounding like you think your better then everyone else, or if you really do. A polite reply once in a while wouldn't hurt.

 

[CraigHB]

From what I've read, LiPos are no more or less volatile than LiCos and they do have their advantages, mainly high drain and very low DC resistance. If you're going to use a LiPo, you absolutely must use a protection board or incorporate your own protection circuitry. They do vent when abused just like the LiCo cells do. Lots of horror stories to be found when browsing the RC groups, but they work them hard, charging and discharging at maximum rates. They don't get worked like that in an e-cig. I've been using LiPos in my mods for some time now. Haven't had any issues myself. Even shorted one by accident and it didn't blow. Lots of sparks went flying though, scared the poop out of me. Taught me not to leave them laying around on my workbench with the tabs exposed. Those connection tabs coming out of seem to seek out things to short on.

 

[WillyB]

So those Kevlar and similar material charging bags they use are just for show?