how do i work out ampage of dual coils?

[kingofswords]

boxmod stopped working so am using mechs until i get sorted.

im using 0.5ohm coil but have loads of 0.6 dc to use and wondered if i can use this with samsung 25r's?

or would the amps be above 20a? 1.2ohms is 3.5a so guessing i just times by 2?

cheers

[thebishman]

Download vapers tool box...it will show you it all

[Postmodern Smoking]

Two 0.6 ohm coils in parallel will be 0.3 ohms, two in series would be 1.2 ohms

[Get Off My Cloud]

Doesn't matter how many coils, all that matters is the resistance of the build.
25r is inside the safe continuous rating down to 0.2ohm.

[VapingBad]

It's half the resistance of a single coil, so if you have a pair of 0.5 ohm coils the res will be 0.25 ohm or a pair of 0.6 ohm coils would be 0.3 ohm. Then it is the same as ever:

current = volts / resistance
I = V/R

Max voltage of 4.2 V is never going to happen as the voltage will drop well below 4 V at these levels, so 4 V is a sensible figure:

I = 4/0.25 (pair of 0.5 ohm) = 16 A
I = 4/0.30 (pair of 0.6 ohm) = 13.33 A

[kingofswords]

thanks for the input

but its a replaceable coil unit that fits in a tank. its marked dc 0.6 ohms (so must be 2 x 1.2ohms)

so is this safe on a mech?

[Postmodern Smoking]

Apr 23, 2017 20:59:04 GMT kingofswords said:

thanks for the input

but its a replaceable coil unit that fits in a tank. its marked dc 0.6 ohms (so must be 2 x 1.2ohms)

so is this safe on a mech?

Using amps = voltage / ohms  (as VapingBad did above, but for a 0.6ohm coil)
                  = 4 / 0.6
                  = 6.67A

So, yes the 0.6 ohm coil should be fine with a 18650 - 25R battery, which I think is rated at 20A continuous

[Get Off My Cloud]

Apr 23, 2017 20:59:04 GMT kingofswords said:

thanks for the input

but its a replaceable coil unit that fits in a tank. its marked dc 0.6 ohms (so must be 2 x 1.2ohms)

so is this safe on a mech?

Absolutely it's safe in terms of amps draw.

[kingofswords]

thanks for the feedback

i can get on with it without worrying.

[Tomo]

You probably know but if it's a hybrid mech mod I would be careful. If the tank takes stock coils I doubt it can be used on a hybrid.

[kingofswords]

By hybrid do you Centre pin has direct contact with battery?

I was planning to use with hybrid. What is the reason i can't?

[kingofswords]

Oh do you mean because the center pin doesn't stick out?

[Tomo]

Apr 24, 2017 9:33:05 GMT kingofswords said:

Oh do you mean because the center pin doesn't stick out?

Yes you haven't mentioned what tank your using but said it takes stock coils. Check it has an adjustable 510 pin and that's fine if it has. If it doesn't even though it's protruding like many tanks it will have a floating 510 pin and the battery may push it up when you screw onto the hybrid. Then you have the danger of a short and possible venting. Safe vaping kingofswords 

[kingofswords]

No its flush but I was going to find a Centre of old atty if I can find one.
In mean time using carvela clone.