Nice tip! Wish I'd seen or thought of this b4 I sold off my 188... but replaced it with i4 which I like better anywho.
Thanx for the tip though. I'll have to store that away.
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Thanx for the tip though. I'll have to store that away.
I just received my Efest 18350's from CCV for my VMAX SS. I purchased 1 set of "NIPS" and 1 set of "FLATS".
It has been recommended to me (by 3 different people) to use 1 Nipple Top and 1 Flat Top inside the VMAX. I have tried all 3 combinations..........2 Flats, 2 Nipple, and the recommended way, using one of each. Each setup seems to work just fine. The batteries fit nicely and the device lights up as normal!
So the question is................Why use the 2 different batteries? Is it a safety issue? Is it a performance issue?
If anyone could answer this question for me, I would be much obliged!
It has been recommended to me (by 3 different people) to use 1 Nipple Top and 1 Flat Top inside the VMAX. I have tried all 3 combinations..........2 Flats, 2 Nipple, and the recommended way, using one of each. Each setup seems to work just fine. The batteries fit nicely and the device lights up as normal!
So the question is................Why use the 2 different batteries? Is it a safety issue? Is it a performance issue?
If anyone could answer this question for me, I would be much obliged!
I think they are recommending that because you should pair the batteries up and always use the same two batteries together and in the same position. They recommend one nip and one flat so it is easier to remember the nip goes in first and then the flat goes in after it, or vice versa. I just write on my batteries with a permanent marker and label them 1T, 1B, 2T, 2B, etc. They should also always be charged together. Using them in this way there is less chance of them failing or going into thermal runaway as they should always be at the same voltage and the same amount of use on them.
My guess is that they were assuming that they were true flat tops where the button does not rise above the plastic wrap. See HERE. Using a button top on the bottom of the stack would allow them to stack w/o using a magnet. Many things we call "flat tops" are really wide button tops not true flat tops.
PS: So how much taller/longer are the button tops?
PPS: When given the option I always prefer flat tops as they are usually shorter and put less pressure on the mods + contact. In the V/Z max this is important because the little brass bushing on a plastic post that is the + contact is soldered directly to the circuit board. It is relatively easy to crack that solder joint with batteries of excess length.
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No, it is neither a safety nor a performance issue.
It is this:
So, using 1 flat and 1 nipp combines sure conductivity between the batts and the shorter length.
The eFest batteries have a slightly raised button top so I think two flat ones would have no connection issues and no magnet would be required. I don't think the on flat, one nip strategy is needed if you want to stack them.
Thank's everyone, all very good explanations. I just wanted to make sure I wasn't going to blow myself up by stacking my 2 Nips together!
IMO......I actually think it's easier to avoid any confusion by just using 2 of the same in your Mod. I know it is recommended to write on the batteries, so you dont mix them up, but I have 1 big issue with that! Sharpie Markers are no longer Permanent. They changed the type of Ink that they use in them (THANKS TO THE EPA) and it doesn't take much for it to wipe off!
Anyhow gotta get back to work!
Thanks
IMO......I actually think it's easier to avoid any confusion by just using 2 of the same in your Mod. I know it is recommended to write on the batteries, so you dont mix them up, but I have 1 big issue with that! Sharpie Markers are no longer Permanent. They changed the type of Ink that they use in them (THANKS TO THE EPA) and it doesn't take much for it to wipe off!
Anyhow gotta get back to work!
Thanks
Efest batteries wrap thickness varies enough that sometimes two "flats" (wide button tops actually) will make contact and sometimes they will not. The flat on top and button on bottom is to insure you always have contact between w/o magnets while keeping length as short as you can.
Two button tops will be longer than a flat and a button top. Any chance you can post up a pic of the two types side by side or measure them so we can see the length difference?
IF the two button tops together make the tightening down the cap at all difficult they are too long and should NOT be used for reasons posted earlier.
BTW, The correct term is "button tops".
Ok I took a picture because the battery in my Micrometer is dead. The Battery on the left side is the Flat Top. It looks longer, but it's impossible to say without precise measurement.
Each set fits perfectly in my VMAX. IMO.......It seems like either set will work just fine. It really just comes down to personal preference. I think this important for anyone who is looking for batteries, for this reason.........Some people don't have the extra cash to spend additional money on 2 sets of batteries. Anyone researching this subject should know that either set will work and that there is no need to purchase 2 different sets to make it work.
Hopefully this will help someone out in the future!
Do they fit with the regular end cap or did you need to use the extended end cap?
18350 batteries require the extended battery cap.
The far one,the chrome on is Zmax with 18350 batteries with extended cap.
The painted one is a Vmax with 18350 batteries.
With a Zmax with 18650 , the battery length sticking out will be the same as the Vmax pictured
Batteries are pushed all the way in the tube.View attachment 136518
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I have a ZMax coming (one eFest 18650 IMR included free) and already have two other 18650 IMR batteries. Is there any reason I should order a cap and some 18350 eFest IMR batteries or will I get a satisfying enough vape using the single 18650 batteries. Some people have said with the stacked batteries it works better.
Works quite well with 18650 and gets really good battery life but has more power with the stacked batteries if more power is required but vape time is a lot less between charges but still quite acceptable
Thanks for the info. I think I will stick with the longer battery life. I think my sweet spot will be between 8 and 9 watts (prob need to set lower due it being a power beast) so the 18650 should work well then. I would think the extra power of the stacked batteries is better for people that go into the double digit wattage numbers.
Wish I would have found this 3 days ago. Would have saved me a lot of searching for what goes in my vmax. I ordered a set of eFest IMR 18350 flat tops and was told they wouldn't work so I ordered a pair of AW IMR 18350. Oh well least I get paid at the end of the month.
My brother has a VMax and he is using the button (flat) top eFest 18350 IMR batteries and they work just fine for him. Hopefully, you get the same results.
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