Z atty U voltage drop

[shortee611]

^^^ Most hobby shops carry it. I paid $1 for a foot of it.

I found this on the Atmizoo website under "voltage drop not were you think it is" posted by MANU. Just rewrote it so it was more understandable. And found on Google the internal resistance of aw imr 18650 2000 mah batteries.(that's what I'm using)

How to figure out your Voltage drop

FB / (0.002 + 0.05 + CR) = A

which would give an atomizer voltage of

A x CR = AV

and a wattage of

AV x A = Watts

FB = freshly charged battery voltage
.002 = average internal resistance of a brand new AW IMR 18650 2000 mah Battery
.05 = average internal resistance of a high end mechanical mod
CR = coil resistance
A = Amps
AV = Atomizer Voltage(voltage at the coil)

For example my set up

4.2 / (.002 + .05 + .9) = 4.41 amps
4.41 x .9 = 3.97 AV
3.97 x 4.41 = 17.5 watts

That 3.97 volts should be the voltage measurement at the coil posts (in a perfect world).

Now that I've modded my ZAU and a fresh aw imr battery 4.2 volts I get a measurement of 3.95 volts. The difference in the theory and the actual is negligible. I cant physically make this any better. IT's much much better than the 2.5 volts I was getting before the modification. And for lack of a better saying "It Vapes like a train"

If your math voltage and your actual voltage are much different your mod may have a higher internal resistance, your atty may have a high internal resistance, or you battery is worn a bit causing the internal resistance to be higher

And if there is something wrong with the math let me know I'll fix it.

 

[EDO]

It is just easier to get you voltage under load....in your case 3.97. Then square the number so 3.97*3.97=15.76 then divide by your resistance of your coil 0.9ohms.....15.76/0.9=17.5 watts. Watts= (V*V)/ohms

 

[shortee611]

Thanks. But I was trying to figure out what voltage I should be getting under load to see if i was close. Because if My voltage was way off I knew there must be a problem. But its all good now.



ohhhh 100 posts

 

[EDO]

Oh ok now I see what you're doing.

 

[abomb27]

I am currently having issues with my zayttu. I am having a voltage drop of 1.2 volts on a .8-.9 ohm coil. Instruction on your brass post modification would be so helpful to me. I really want my $140 device to work as it should! Thanks

 

[shortee611]

I just used a solid piece of brass. 1/8 diameter picked up from a hobby shop. take the ZAU completely appart remove the spring and the little pin. drill out the bottom of the plastic insulator with a 1/8 drill. I just held the drill bit with my fingers. Reassemble the atty insert the brass rod in from the bottom, mark it and cut it a little long then file it to the correct length.