0.018 ohm vaping on MNKE?????

[Aqueous1025]

I recently bought a 22650 copper Cartel Boss and am looking for a battery for it. Everyone keeps telling me that they are vaping as low as 0.018 on the MNKE batteries. I know currently on my 18650 devices with my Sony vtc4 batteries to not go below 0.200 ohms for safety purposes. But part of the ratings for the MNKE says 20 amp on the continuous amp draw which sounds like it would not be safe to vape at 0.200 ohm let alone the 0.018 I kept being told I can go down to??? So I guess what I would like to know is if 0.200 is the lowest I should build for safety on either my Sony or MNKE or would I be able to go lower on the MNKE???

My Sony

Flat topNominal Capcity: 2100 mAh
Rated Capaciity: 2000 mAh
Nominal voltage: 3.7v
Voltage after a fresh charge: 4.2 +/- .05v
Do not discharge this battery below: 2.5v
Maximum charge voltage: 4.25
Continuous Maximum Charge Current: 10 amps
Continuous Maximum Discharge Current: 30 amps
Weight: 45.1g
Allowable Enviroment Temperature for Charging: 0 to +45 degrees C
Allowable Environment Temperature for Discharging: -20 to + 60 degrees C
Recommended Charging Algorithm: CC-CV 4.20V +/- 0.005V, 1.5A, 2.5 hours

MNKE I keep being told to buy
Model IMR26650-H

Rated Capacity 4000 mAh
Maximum Continuous Discharging Current 20 A
Maximum Instantaneous Discharging Current 60 A
Maximum Continuous Charging Current 6.5 A
Maximum Rated Discharging Current 30 A
Nominal Voltage 3.8 V
Maximum Charge Voltage 4.2±0.05 V
Temperature Range/Discharge -20～60 ℃
Temperature Range/Charge 0～45 ℃
Temperature Range/Storage -20～35 ℃
Internal Resistance at Shipping 13±2 mΩ
Weight 91.7±1 g
Height: 66.32mm



Thanks for any help and advice you can share

 

[wonkeypickle]

I recently bought a 22650 copper Cartel Boss and am looking for a battery for it. Everyone keeps telling me that they are vaping as low as 0.018 on the MNKE batteries. I know currently on my 18650 devices with my Sony vtc4 batteries to not go below 0.200 ohms for safety purposes. But part of the ratings for the MNKE says 20 amp on the continuous amp draw which sounds like it would not be safe to vape at 0.200 ohm let alone the 0.018 I kept being told I can go down to??? So I guess what I would like to know is if 0.200 is the lowest I should build for safety on either my Sony or MNKE or would I be able to go lower on the MNKE???

My Sony

Flat topNominal Capcity: 2100 mAh
Rated Capaciity: 2000 mAh
Nominal voltage: 3.7v
Voltage after a fresh charge: 4.2 +/- .05v
Do not discharge this battery below: 2.5v
Maximum charge voltage: 4.25
Continuous Maximum Charge Current: 10 amps
Continuous Maximum Discharge Current: 30 amps
Weight: 45.1g
Allowable Enviroment Temperature for Charging: 0 to +45 degrees C
Allowable Environment Temperature for Discharging: -20 to + 60 degrees C
Recommended Charging Algorithm: CC-CV 4.20V +/- 0.005V, 1.5A, 2.5 hours

MNKE I keep being told to buy
Model IMR26650-H

Rated Capacity 4000 mAh
Maximum Continuous Discharging Current 20 A
Maximum Instantaneous Discharging Current 60 A
Maximum Continuous Charging Current 6.5 A
Maximum Rated Discharging Current 30 A
Nominal Voltage 3.8 V
Maximum Charge Voltage 4.2±0.05 V
Temperature Range/Discharge -20～60 ℃
Temperature Range/Charge 0～45 ℃
Temperature Range/Storage -20～35 ℃
Internal Resistance at Shipping 13±2 mΩ
Weight 91.7±1 g
Height: 66.32mm



Thanks for any help and advice you can share

4.2 at .018 would give you roughly 233 amps, 203 more than the battery is rated. so let's just hope that was a typo.


continuous discharge is 30 amps on that battery, the most it can push at 4.2 volts would be 30 amps on a .14 ohm load.


remember at this point in the game that safety is an utmost concern, i realize more people are doing these setups (my adv is at .1), but that does not mean they are safe.

 

[Morandir835]

Aqueous (sir or Ms.?) pushing any single battery at a load under .1ohms is not only dangerous but downright idiotic. Don't even suggest striving for that number. The only times I've seen people pushing such low ohms for non-competition vaping are with nickel wire on a DNA40 device which is temperature regulated. Don't suggest using either battery for a .018 build. You can push a MNKE battery to do .2ohms, but keep in mind that this is an incredible strain on the battery. Wouldn't do any long hits, and wouldn't suggest running that battery any lower than 3.75v off load.

No single battery in an unregulated device is going to give 4.2v to a .018 ohm load at full charge, so there's no chance it will pull 233 amps. Having said that, using that low of a resistance is pretty much a guarantee that it will cause the battery to vent or worse upon use.....

 

[DaveSignal]

.018 is getting pretty risky. Many of those 26650 batteries though are rated for 60A continuous. So you could be down at .07 and are still within the continuous rating of the battery.

 

[DreamWithin]

I really hope that was a typo. 0.18 ohms is pushing things to or beyond the limit (depending on the battery), most meters aren't even accurate down that low unless you have a top-of-the-line-$$ one. 0.018 ohms is so close to a dead short as to be begging for disaster

Whoever is telling you to go that low really should educate themselves a little better, I can't think of any situation where that is a good idea

 

[Aqueous1025]

Thank you for your replies.

0.018 ohm is not a typo nor any where near reasonable in my mind. I would not go below the 0.200 ohms I do on my Sony batteries (as a personal choice). I am just trying to understand why they say you can do it and why their mods are not blowing up for doing it? This is what they say they are currently doing with their MNKE batteries and why I should buy that battery. This is more of a question to learn theory and make sure that 0.200 is more than safe on the MNKE like my Sony batteries. I was original told to stay below the continuous 30 amp rating of the Sony by not building below 0.200 ohms only using 2 thirds of its continuous drain leaving some room for safety (21 amps / 9 amps less than maximum). These are all the same people by the way. This is why I am confused. What they taught me is correct about the Sony, but what they are telling me about the MNKE is far from correct unless I am seriously missing some information. The only other thing I can think of is that they may possibly be meaning 0.180 or maybe even 0.080 ohms but are verbally articulating that incorrectly to 0.018 ohms.

 

[Morandir835]

Aqueous they have to mean .18ohms or they're lying....

2 things though- You're not pulling 21 amps from your Sony at .2ohms. With voltage drop from the load you're looking at ~3.6v on the Sony at start (won't stay at the voltage for long), pulling about 18-19 amps of power. Sony's are not rated for 30 amps unless they have active cooling. They're 20 amp continuous batteries for all intensive purposes when it comes to vaping or use in flashlights.

 

[Norrin]

Even at 0.18 it's getting stupid because even if they have the equipement to cope with this bet they don't have anything to measure the resistance accurately enough to ensure safety. Glad I enjoy my 2 Ohms more than sub-ohming and don't have to think about these things.