Heat issue present with a single 18650, but not with stacked 18350's

[toothboy]

I have a SS Vamo and a gunmetal Vamo. I primarily use stacked 18350's but I have a few 18650's lying around as well. Presently using the 18350's I have not noticed any heat coming from the base of the unit during vaping. But last night I threw in an 18650 and immediately noticed the bottom of the Vamo (near the end cap) getting warm.

What's the reasoning behind this?

Also, I was not going to worry about a new spring but if I ever decide to use 18650's I don't want the heat issue to be a problem, so should I go ahead and contact the vendor about getting a replacement spring? Thanks.

 

[VpnDrgn]

First, I would check the batt to make sure there are no worn spots in the cover to cause a short.

Secondly, is the batt an IMR? If it is a reg batt and you have the volts or watts cranked up,
then the device may be drawing too hard on the batt and that would cause heat.

 

[jazon1]

yea i would think the battery cant put out enough power to keep up with the vamo when vaping,if its a trustfire or one of the other non high drain batterys you might not want to use, them you risk having them pop on you if they are getting hot under use.

 

[Gstavrev]

I have this issue with the 18650 and the end cap, but the batt that i`m using is CGR18650CH and she works fine without any problems in my Sigelei Zmax. With the stacked batts i have no heat problems

 

[DeadPerfect]

i noticed this too. also, my red aw imr 18350 stacked dont fit good. guess cuz of the button tops.

 

[Balders]

Umm same problem here, I'd logged in to check for this exact problem.

With 2 stacked 18350s (came with my TW Screwdriver) cracking performance, cold bottom cap. Genesis tank would put a steam train to shame

With a single AW 18650 IMR (brand new) or one or the above 18350s - warm cap and seriously lacking performance.

Batteries charged with a Nitecore I4 and check out nicely with a meter.