Bit of help

[markepants]

Hi I'm pretty new to building coils so forgive me if I sound stupid! But am I right in thinking the lower the number the thicker the wire? Example 25g kanthal wire is thicker than 28g etc etc
Also how many wraps for each size wire and what ohms reading should I be looking for?
Oh and what's a decent set of batteries for the x cube 2 as the ones I have give me only a days use!
Thanks

 

[Robert Cromwell]

Yes the lower the GA number the thicker the wire and it will also have a lower resistance.
Use this to figure target coil resistance and heat flux for how many watts to use on the coil you build.
Steam Engine | free vaping calculators

 

[markepants]

Cheers I'll take a look

 

[Robert Cromwell]

The heat flux thingy is on the right under the number of wraps needed section. Adjust the watts up and down for a green flame looking thing. That will be close to the wattage it will work best with. Play around with different configurations. Note that larger diameter wires will have a more of a ramp up time to get up to heat than smaller wires will. But you cannot run as many watts on the smaller wire..
There is no one solution on a coil for every tank and persons likes.

 

[Susan~S]

@markepants, which batteries are you currently using? What is the highest wattage you plan to vape at?

 

[markepants]

@markepants, which batteries are you currently using? What is the highest wattage you plan to vape at?

I'm using vaping outlaws extreme
18650 2500mah
Cheers

 

[markepants]

I'm using vaping outlaws extreme
18650 2500mah
Cheers

Oh and between 50-70w

 

[oplholik]

Is this the battery you are referring to? If so, be careful. 40 amp? I don't think so. This is most likely a rewrapped 20a, and I wouldn't trust it to be any more than that.

 

[markepants]

Is this the battery you are referring to? If so, be careful. 40 amp? I don't think so. This is most likely a rewrapped 20a, and I wouldn't trust it to be any more than that.
View attachment 509739

That's the one oh no good then[emoji17] any recommendations ?
Thanks

 

[oplholik]

I assume you are sub ohming, I'm only a tootle puffer, so will let more knowledgeable vapors into sub ohming answer that. I just know there isn't really such a thing as a 40 amp 18650. When looking for batteries, the best are AW's, LGHE2's, Sony, Samsung, ect, ect. Get a name brand from a reputable dealer. Two examples below.

Authentic AW Batteries - RTD Vapor

18650 Batteries | Rechargeable Li-ion | Battery Chargers

 

[markepants]

I assume you are sub ohming, I'm only a tootle puffer, so will let more knowledgeable vapors into sub ohming answer that. I just know there isn't really such a thing as a 40 amp 18650. When looking for batteries, the best are AW's, LGHE2's, Sony, Samsung, ect, ect. Get a name brand from a reputable dealer. Two examples below.

Authentic AW Batteries - RTD Vapor

18650 Batteries | Rechargeable Li-ion | Battery Chargers

Thanks for the advice

 

[oplholik]

You are welcome, just be sure you are safe.

 

[Robert Cromwell]

Is this the battery you are referring to? If so, be careful. 40 amp? I don't think so. This is most likely a rewrapped 20a, and I wouldn't trust it to be any more than that.
View attachment 509739

That label can have more than one meaning since there are no 40 amp 18650 CDR batteries.

 

[Susan~S]

I'm using vaping outlaws extreme
18650 2500mah
Cheers

Oh and between 50-70w

As long as you stay below approx 125 watts a couple of identical 20A CDR batteries will work well.

Here are some options for 20A batteries (in descending mAh):

• AW 3000 mAh 20A CDR
• LG HG2 3000 mAh 20A CDR
• Samsung 30Q 3000 mAh 20A CDR
• Sony VTC5 2600 mAh 20A CDR
  
• LG HE2 or HE4 2500 mAh 20A CDR
• Samsung 25r 2500 mAh 20A CDR

The mAh stands for milli-Ampere-hours and indicates how much electric charge the battery can provide. For example, if you discharge your battery through a circuit that requires 1 milli-Ampere of current it will last 2500 hours before the battery runs down (if the mAh of your battery is 2500). The higher the mAh, the longer your battery will last before it needs charging.

 

[Robert Cromwell]

Yep on the MAH but if you discharge the 2500 mah battery in 20 amp bursts the mah drops considerably.
Moreso with some batteries than others.

does AW actually make batteries or are they rewrapped LG's?

 

[Susan~S]

does AW actually make batteries or are they rewrapped LG's?

This is what I have read from Baditude

AW is Andrew Wan, a former Panasonic employee who branched out to create his own "brand" of batteries. He allegedly has agreements with the major cell manufacturers to purchase first tier batteries from them. Not all batteries are created equal, so AW tests these batteries for quality. The best get chosen to be AW brand, and are re-wrapped as AW.