Zmax overheating at the end cap...common or faulty?

[janb8589]

Hey guys. Just wanted to ask if anyone is having a similar experience. I've had my ss Zmax for about 2 weeks now, bought off of madvapes. I've been using it on and off with my other apvs. Currently use it with an LR dual coil carto tank, set to 9 watts, with an AW 18650 battery. I picked it up today, took about 3 hits and nearly burned the edge of my hand on the end cap. I noticed when I fired it, the end cap would heat up quickly, but only during the duration of activation. I don't see anything wrong with the battery or even the inner coil on the end cap and I don't smell anything unusual, no burning, no smoke. The performance of the device is fine otherwise but I'm now kinda afraid to continue using it. I wanted to ask if this was typical of the device and if I should be concerned.

 

[kiwivap]

Not typical, but if I were you I'd ditch the LR. You don't need low resistance with a Zmax. LR at 9 watts - its likely that's why it got hot. Zmaxs are really designed for a standard resistance range, or higher, and varying your watts with those. You don't need LR with the power you've got.

Using LR you are running higher amps.

 

[janb8589]

Thanks for the reply. The resistance on the carto is 2.2 ohms and when I check the voltage to get to 9 watts of power, the device says it's firing at 3.5 volts. I know the dual coils might be affecting the readings. I tried moving the tank to a vv box mod and my provari and fired it at 4.5 volts on both and both devices had no problems with heating. Only seems to happen on the Zmax. But I will try using higher resistance cartos just on the Zmax to see if it works.

 

[kiwivap]

Hi Jan,
I wouldn't think 2.2 ohms would be a problem. Are you in RMS on the 8th menu? It says ANS - which is RMS. Could be something to do with the dual coils.
The 3.5 volts you read may be the actual battery voltage, not the firing voltage.

 

[Koman]

Hey guys. Just wanted to ask if anyone is having a similar experience. I've had my ss Zmax for about 2 weeks now, bought off of madvapes. I've been using it on and off with my other apvs. Currently use it with an LR dual coil carto tank, set to 9 watts, with an AW 18650 battery. I picked it up today, took about 3 hits and nearly burned the edge of my hand on the end cap. I noticed when I fired it, the end cap would heat up quickly, but only during the duration of activation. I don't see anything wrong with the battery or even the inner coil on the end cap and I don't smell anything unusual, no burning, no smoke. The performance of the device is fine otherwise but I'm now kinda afraid to continue using it. I wanted to ask if this was typical of the device and if I should be concerned.

I have heard this happening on some other models as well. Haven't encountered it myself.