18350 vs 18650 - any difference other than capacity ?

[VapinSweetZ]

Not using less than 1.5 ohm (so max of 2.5 amper)
Are there any differences on using 18350 vs 18650 other than capacity?

Thanks!

 

[suspectK]

Continuous ratings are the only thing that really is different other than size and capacity.. And keep in mind, with a regulated/boost mod, your battery is going to need more current out to get a higher voltage than 4.

 

[certus11]

about 30 mm in diff

 

[wv2win]

Per PBursardo's analysis, two 18350's provide more power and more consistency than one 18650 when using heads that are 1.8 ohm or less.

 

[Baditude]

Per PBursardo's analysis, two 18350's provide more power and more consistency than one 18650 when using heads that are 1.8 ohm or less.

If you are going to recommend stacking batteries to a novice, don't you think you should also point them in the right direction on how to do this safely?

I personally do not recommend stacking batteries, IMHO its not worth the risk. My

 

[VapinSweetZ]

Thanks everyone (specially Baditude, suspectK, you're ALWAYS have AWESOME answers!),
I'm not considering stacking right now because I'm using 18350 to make the device smaller


And as always I have some follow up questions

Continuous ratings are the only thing that really is different

Iis it still relevant when I'm using VV device in RMS mode? Anyway I guess the capacitor (or whatever gives more than 3.7v) need to complete the difference and the RMS need to verify it gives me the voltage I set.

with a regulated/boost mod, your battery is going to need more current out to get a higher voltage than 4.

If I'm using min 1.5ohm, even with 5.2v it's still just 3.5A, is that too much for (let's say cheap, brandless) 18350 battery?

 

[Stosh]

If I'm using min 1.5ohm, even with 5.2v it's still just 3.5A, is that too much for (let's say cheap, brandless) 18350 battery?

Umm, a cheap, brandless 18350 battery might be unsafe at any speed....
There is a number of "battery suppliers" on flea-bay and elsewhere that are marketing fake batteries, and recycled, reject batteries. For the cost of a top name battery from a reputable vendor, it's not worth the risk. They will last for a year or more, treated with care, so batteries are one of the cheaper costs in vaping...

 

[wv2win]

Per PBursardo's analysis, two 18350's provide more power and more consistency than one 18650 when using heads that are 1.8 ohm or less.

View attachment 314540

If you are going to recommend stacking batteries to a novice, don't you think you should also point them in the right direction on how to do this safely?

I personally do not recommend stacking batteries, IMHO its not worth the risk. My

Now, Bad, as you know, I didn't actually recommend it, but simply answered a question with the analysis done by Phil Busardo.

But now that you brought it up, if one follows the safety protocol of rotating a good matched set of 18350's, they are as safe as any battery in my experience. And Phil's analysis is correct. They do provide more power, more consistently than one 18650 from my experience using both in a Vamo vaping at 11.5 - 12 watts.

 

[Baditude]

Is it still relevant when I'm using VV device in RMS mode? Anyway I guess the capacitor (or whatever gives more than 3.7v) need to complete the difference and the RMS need to verify it gives me the voltage I set.

If I'm using min 1.5ohm, even with 5.2v it's still just 3.5A, is that too much for (let's say cheap, brandless) 18350 battery?

It is very much relevant. The reason is somewhat technical, but since a regulated VV/VW mod uses pulse width modulation to make higher voltage from a 3.7 volt battery source, that processor needs at least 6 - 8 amps of battery power.

Technical - Why high drain batteries?

Question for the tech engineers at Provape

"Cheap, brandless" batteries are unknown batteries made by an unknown source with unknown battery specifications. Quite often these are the rejects of the better battery manufacturers, or used batteries pulled from old laptop computers and rewrapped to be sold as new batteries. Please never use cheap generic batteries in your mod; its not worth the safety risk.

 

[Baditude]

Now, Bad, as you know, I didn't actually recommend it, but simply answered a question with the analysis done by Phil Busardo.

But now that you brought it up, if one follows the safety protocol of rotating a good matched set of 18350's, they are as safe as any battery in my experience. And Phil's analysis is correct. They do provide more power, more consistently than one 18650 from my experience using both in a Vamo vaping at 11.5 - 12 watts.

Just bringing the subject up can be interpreted as a recommendation. To bring up the subject of stacking batteries in a mod without also mentioning the safety protocol is a disservice to anyone not aware of safe battery practices. What's to keep a novice from reading your statement, using stacked batteries without learning and understanding why the safety protocol is relevant and necessary? Don't assume that novices are going to do any more research than what they read in a thread like this one. Some need to be spoon fed. Stacking batteries in a high drain mod is different than stacking batteries in a low drain flashlight.

Not picking a fight with you bro. We've differed in our opinion about stacking batteries in the past. I just expected more coming from you as a veteran who often pays it forward to novices, especially when it comes to safety issues.

 

[wv2win]

Just bringing the subject up can be interpreted as a recommendation. To bring up the subject of stacking batteries in a mod without also mentioning the safety protocol is a disservice to anyone not aware of safe battery practices. What's to keep a novice from reading your statement, using stacked batteries without learning and understanding why the safety protocol is relevant and necessary? Don't assume that novices are going to do any more research than what they read in a thread like this one. Some need to be spoon fed. Stacking batteries in a high drain mod is different than stacking batteries in a low drain flashlight.

Not picking a fight with you bro. We've differed in our opinion about stacking batteries in the past. I just expected more coming from you as a veteran who often pays it forward to novices, especially when it comes to safety issues.

OK, I will remember to mention the safety protocol in the future. Although on the reverse side of that coin, wouldn't it also be appropriate to point out the performance advantages of stacked 18350's within discussions of this nature? Many of us have found the improved performance of stacked 18350's to be definitely noticeable and the safety experience to be good when rotated/matched properly. I too believe in giving a new person the full picture and letting them make up their minds. Some (not you per se) just make these blanket statements to never use two 18350's.

 

[iacchus]

18350s will generally have a bit higher internal resistance, and heat up under use a bit easier than '650s.

 

[PaulBHC]

I have AW 18350 in an unregulated mod and get about half a day, a little more than an ego 650. In a VV mod you may get less.