Question about battery drain and wire gauge

[cowichanpuffs]

Does a thicker wire draw more amps? I always vape at around 11 watts. I have made plenty of 1.0ohm coils using them on my vtr. I recently made a coil using 4 strands of 36 gauge nichrome twisted together 1.0ohm I usually use two strands. The 4 strand coil was twelve wrap contact coil on 18 gauge needle. My usual 2 strand is 5 wrap contact coil on 18 gauge needle.

My question is dose thicker wire pull more amps. My ohms calc doesn't have a option to put wire gauge. So a 1.0ohm coil at 11 watts pulls 3.32 amps at 3.32 volts buy with the 4 strand coil my battery's last half the amount of time as they do with my usual 2 strand coil?

sent from the voop room

 

[CreepyLady]

The same amps are pulled if the coils are the same ohm. Amps = Volts/Ohms, however 4 strands at 12 wraps vs 2 strands at 5 wraps is more work for you battery to power. Thicker wire drains your battery quicker because it has less resistance.

 

[cowichanpuffs]

I do understand that the wire is less resistive. Just looking for more of a technical answer.

If the power contained in said battery is expressed in mah or mili amps hours and the amp draw is the same for the same amount of time. Then how can the battery drain faster?

sent from the voop room

 

[CreepyLady]

That is how ^^ The larger a conductor is in a circuit (all else being equal), the larger the path voltage has to travel. 28 gauge is larger than 32 gauge so a larger path, therefore less resistance. The larger path takes more battery to power, because its larger.

The heavier gauge wire doesn't heat as fast due to said size. So more wire to heat = more battery used, less wire to heat = less battery used.

(edit to add - the more wire/less wire and battery use would be only in the case you were targeting two builds with the same ohms and different gauge wire)

 

[Ryedan]

Does a thicker wire draw more amps? I always vape at around 11 watts. I have made plenty of 1.0ohm coils using them on my vtr. I recently made a coil using 4 strands of 36 gauge nichrome twisted together 1.0ohm I usually use two strands. The 4 strand coil was twelve wrap contact coil on 18 gauge needle. My usual 2 strand is 5 wrap contact coil on 18 gauge needle.

My question is dose thicker wire pull more amps. My ohms calc doesn't have a option to put wire gauge. So a 1.0ohm coil at 11 watts pulls 3.32 amps at 3.32 volts buy with the 4 strand coil my battery's last half the amount of time as they do with my usual 2 strand coil?

If you set your VTR at 11 watts, it doesn't matter what the coil resistance is, the VTR will adjust the output voltage to make the power equal 11 watts. It does this by swapping amps from the battery for VTR output volts. Watts equal volts times amps so watts directly relate to battery drain. In this case your battery will last very close to the same time with different resistance coils (because the watts are the same).

If you set your VTR to X volts (or use a mechanical mod), the lower the resistance you make the coil, the more the amp draw is going to be making the power (watts) increase. In this case, the lower the resistance, the less time you get from a battery charge.