what battery should i use in a ohm/fire meter?

[Teletha]

i was thinking of buying a simple ohm meter and that can also heat up the coil.
im not sure if there is any danger in buy the cheaper ones i know that the one i linked is off by around 0.02ohm but im not sure what battery i need does it need high CDR?

 

[Sugar_and_Spice]

As long as it is a 18650 or whatever that particular reader calls for, I don't think it makes a difference. I try and use an older 18650 that seems to have seen better days. Altho mine just took its last read. The display just went and I paid good $ for that(didn't last long). So from now on, I just plan on using a mod that I have set aside for building purposes. As long as I am careful and not hit the fire button at inappropriate times.

 

[puffon]

You want a battery that is safe to use with the ohm of the coil you built.

 

[Teletha]

You want a battery that is safe to use with the ohm of the coil you built.

but how do i know how much Wattage the meter is outputting?

 

[puffon]

but how do i know how much Wattage the meter is outputting?

It's like a mech, with some safety features.
Output is based on the voltage of the battery.
A .5 ohm coil with a fully charged 4.2v battery will put out about 35.28 watts.
A discharged 3.7v battery will put out about 27.38 watts
The Coil Master 521 and GeekVape 521 have protection against shorts and don't fire a coil that is below .2 ohm.
A proven 20amp battery would work fine for any builds fired on them.

 

[Teletha]

I see, very usefull info!
Thanks!

 

[Cheallaigh]

It's like a mech, with some safety features.
Output is based on the voltage of the battery.
A .5 ohm coil with a fully charged 4.2v battery will put out about 35.28 watts.
A discharged 3.7v battery will put out about 27.38 watts
The Coil Master 521 and GeekVape 521 have protection against shorts and don't fire a coil that is below .2 ohm.
A proven 20amp battery would work fine for any builds fired on them.

ummm puff? the CM will fire below .2 ohms...

 

[puffon]

ummm puff? the CM will fire below .2 ohms...

Yep, the new versions go to .1, the original, from a couple years ago, only fired down to .2 ohm.

 

[anavidfan]

I got one of the CoilMaster ones. I got it from Amazon, good price, free shipping etc.

I use 28g 317L SS and found that it was hard to get a nice smooth pulse from it and kept popping my coils.

I did a bit of research and apparently its common on thinner wires. I was kinda bummed as I got it to save my box mod from the wear and tear of constant building and dry burning my atties.

Fortunately since I bought it at Amazon I was able to return it for a full refund.

I think it will be fine for thicker wires and wrapped exotic wires.

I did find a couple of real cheap reg boxes in the classifieds so Im hoping that those will work out fine for my building/ cleaning needs.

I liked the CoilMaster, great weight, size and shape for building, just did not work out for my wimpy , boring coils.

 

[puffon]

I got one of the CoilMaster ones. I got it from Amazon, good price, free shipping etc.

I use 28g 317L SS and found that it was hard to get a nice smooth pulse from it and kept popping my coils.

I did a bit of research and apparently its common on thinner wires. I was kinda bummed as I got it to save my box mod from the wear and tear of constant building and dry burning my atties.

Fortunately since I bought it at Amazon I was able to return it for a full refund.

I think it will be fine for thicker wires and wrapped exotic wires.

I did find a couple of real cheap reg boxes in the classifieds so Im hoping that those will work out fine for my building/ cleaning needs.

I liked the CoilMaster, great weight, size and shape for building, just did not work out for my wimpy , boring coils.

What I do is use a discharged (<3.7v) battery. Keeps the wattage being applied lower.
28g Kanthal holds up for me, haven't tried SS tho.

 

[anavidfan]

DOH, didnt think of that... Too late, but that is genius....

 

[puffon]

DOH, didnt think of that... Too late, but that is genius....

I can't take credit tho. I think it was mentioned in a DJLsb you tube review.
He took it apart and showed the thin wiring they were using.
I don't leave a battery in mine, after seeing it.

 

[Firestorm]

I have a bunch of older AW IMR 18650 batteries that I no longer use in my mods because I favor my larger capacity and higher amperage LG HG2 and Sony VTC5 batteries. I use these older batteries in my Coil Master 521 Tab because it doesn't take a lot of power to read resistance and my non-sub-ohm builds also don't require a lot of power.

 

[TVC70]

I've always used LG HG2s in my 521 Tab (I have a lot of them, and they have decent capacity and CDR).

 

[Eskie]

I got one of the CoilMaster ones. I got it from Amazon, good price, free shipping etc.

I use 28g 317L SS and found that it was hard to get a nice smooth pulse from it and kept popping my coils.

I did a bit of research and apparently its common on thinner wires. I was kinda bummed as I got it to save my box mod from the wear and tear of constant building and dry burning my atties.

Fortunately since I bought it at Amazon I was able to return it for a full refund.

I think it will be fine for thicker wires and wrapped exotic wires.

I did find a couple of real cheap reg boxes in the classifieds so Im hoping that those will work out fine for my building/ cleaning needs.

I liked the CoilMaster, great weight, size and shape for building, just did not work out for my wimpy , boring coils.

I'm surprised. I frequently build with simple 28G 316L and never had a problem with the 521 not firing smoothly. I don't blame you for returning it if you were having that issue, I'm just surprised it did. I just used it not 15 minutes ago to dry burn and rewick a tank due for a cleanup.

 

[anavidfan]

I'm surprised. I frequently build with simple 28G 316L and never had a problem with the 521 not firing smoothly. I don't blame you for returning it if you were having that issue, I'm just surprised it did. I just used it not 15 minutes ago to dry burn and rewick a tank due for a cleanup.

Yeah, it fired up strong, instant red coils. Im used to using my mechs and lately my YIHI box that is set at 12.5watts. Im used to lightly pulsing my new coils and either squeezing them into shape etc. The CM Tab seemed a bit stiffer and I had to press it and boom red coils. With my box mod or my Provaris its such a smooth heat up and I have to press the button ever so lightly Im so used to that.

Maybe it was the freshly charged 18650 and the button being different that made me heat them too fast and pop. I have problems with my hands , especially the thumbs, it was probably "me" and since I paid so much I probably jumped the gun and returned it too soon. Or I got the one in a billion that had a fault. I tend to attract those . Thats why when I buy anything electronic , I buy from Amazon so I am safe and know I wont be hassled for exchanges or returns.

I have a couple of boxes coming in that only cost me a few bucks for the shipping, so Im hoping those will work out for what I need.

 

[Cheallaigh]

yeah that's not normal... there's a problem with the 521, it shouldn't be doing that. i've been using mine for 4? months now and no issues with a HE4 in it. i just pulse (tap-release-tap-release) to dry burn and a steady holding of the button still wouldn't be an instant redhot.

 

[KenD]

Yeah, it fired up strong, instant red coils. Im used to using my mechs and lately my YIHI box that is set at 12.5watts. Im used to lightly pulsing my new coils and either squeezing them into shape etc. The CM Tab seemed a bit stiffer and I had to press it and boom red coils. With my box mod or my Provaris its such a smooth heat up and I have to press the button ever so lightly Im so used to that.

Maybe it was the freshly charged 18650 and the button being different that made me heat them too fast and pop. I have problems with my hands , especially the thumbs, it was probably "me" and since I paid so much I probably jumped the gun and returned it too soon. Or I got the one in a billion that had a fault. I tend to attract those . Thats why when I buy anything electronic , I buy from Amazon so I am safe and know I wont be hassled for exchanges or returns.

I have a couple of boxes coming in that only cost me a few bucks for the shipping, so Im hoping those will work out for what I need.

No regulation in the 521 and ss has low resistance, so it's likely that the power simply was too high. Puffon's trick of using a partly discharged battery is a good idea.

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