Some real goodies here and there:
http://www.emove360.com/wp-content/...Report-ver-3-presentation-for-conferences.pdf
http://www.emove360.com/wp-content/...Report-ver-3-presentation-for-conferences.pdf
Interesting presentation about upcoming 20700/21700 battery releases
- Thread starter Mooch
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"1.18650 size was developed for notebooks and camcorders –that market has been changed.
2.High demand for more energy lead to larger battery packs–18650 is not ideal size for them.
3.Larger packs with 18650 cells need a complicated BMS."
I'm starting to get concerned my stockpile of 18650 sized mods will be obsolete in the next 10-15 yrs.
Do you think we will still be able to find affordably priced, 18650 sized batteries that fit our needs?
2.High demand for more energy lead to larger battery packs–18650 is not ideal size for them.
3.Larger packs with 18650 cells need a complicated BMS."
I'm starting to get concerned my stockpile of 18650 sized mods will be obsolete in the next 10-15 yrs.
Do you think we will still be able to find affordably priced, 18650 sized batteries that fit our needs?
I do. But 10-15 years from now is a huge amount of time. You'll still have all the mods you have now?
Good to know.
Sure my CCs, REOs, Coppervape mech squonkers will last my lifetime and are FDA proof,
assuming I can get batteries for them...
Yep, count in another person with the same philosophy.Good to know.
Sure my CCs, REOs, Coppervape mech squonkers will last my lifetime and are FDA proof,
assuming I can get batteries for them...
Thanks for the heads up.
I found this video saying Tesla might get it's 2170 cell to nearly 6,000 mah. I wonder if this is realistic. If the cell also had a 20 amp rating, or was safe to use at my 30 max watts (and has a decent number of recharges) I'd be interested for an endurane mod similar to my Pico Mega. Currently an LG HG2 gets me through a day without recharging or carrying loose batteries.
Mooch, you tend to focus on the issues that matter most to mech users. How about also account for regulated mods and lower watts vapers like me and what's prudent for them to use?
I watched your interview with the british guy on youtube relating to battery safety and learned some things. The two of you ought to consider repeating that interview, making the video shorter and packing in the same info and more if there was some left out. Thanks again.
In a given form factor, there has always been a trade-off between capacity in mAh and CDR in amps. Unless Panasonic has made significant advances in battery chemistry that haven't been incorporated into 18650s, I don't see that combination of specs feasible in a 21700.
How many watts are you actually vaping at? I ran 10A Panasonic NCR18650PF cells in a DNA40 for over a year. Perfectly safe at the 15-20 watts I had the device limited to. They never even got warm, and out-lasted the lower capacity, higher CDR cells that I theoretically should have been using. Of course, cranking the device up to its full 40 watt potential would have been dicey.
Just now I watched the watts reading in a mirror while taking a puff. The reading hit 30 watts then backed of a watt or two for the duration of my short MTL hits which are well under 2 seconds. May be I should be considering a 15 amp battery if there is such a thing that might have more mah and or more recharge cycles. May be a 10 amp battery would be safe for my use. 3 cutoff volts X 10 amps = 30 watts more or less. The 10 amps of head room of the HG2 is comforting but my be unnecessary.
A 6Ah battery will have a fairly low amp rating but perhaps high enough for your style of vaping.
I was quite surprised to hear you say I focused on mech users. How so?
Both regulated and unregulated mod users need the exact same thing from their batteries; long running time and high voltage under load (i.e., hard hitting). The need for long running time is obvious. But regulated mod users benefit from a hard-hitting battery as much as a mech user. The harder it hits, the longer it takes for the voltage to drop to the mod's low voltage cutoff.
Identifying the best performing and longest running batteries, with current ratings from below 10A up to 30A, benefits the vast majority of vapers. If there are several requests to test specific low current batteries or expand the type of testing
I do then I will be happy to do so.
I have tested quite a few 18650 and 18350 batteries rated at 10A and under though and even had a 10A shootout to find the best 18650. I get almost no requests to test batteries in that amp rating range so additional shootouts haven't been scheduled. There aren't a lot of vapers at under about 22W using external batteries. At about this level, and higher, the 20A 3000mAh batteries actually run for longer due to their reduced voltage sag.
Thanks for your battery video feedback and thoughts! Dean and I probably won't reshoot that first one but we are considering doing another that will have some overlapping content with the first video.
Thanks, I don't pretend to understand all the variables possible with batteries. There seem to be 3 vaper approaches to batteries.
1. What can I get away with.
2. What's the right tradeoff between safety and endurance.
3. What's the cheapest battery that fits.
I'm a vaper in the second catagory. So far the my best understanding is the 3,000 mah batteries like the HG2 have plenty of safety margin at my 30 max watts. I haven't had enough information to know if a lower amp battery with more stated mah would have any endurance advantage and still have plenty of safety margin.
The fine points about batteries you discussed in the interview is generally hard information to come by so here's hoping you share more of it. I wish pbusardo would interview his battery factory contacts about safety. They have seen it all.
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