Standard ReoGrand vs. Stabalized ReoWoodvill18490
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Battery, voltage drop and contacts, does the grand have gold or silver contacts? do you have a multimeter?
that was true with the silver contacts in the grand for sure. The older contacts had a higher voltage drop, the gold contacts should get them much closer.
Thanks for the responses.
Im getting plenty of vape from the grand, just not the same flavor as im getting from the woodvill.
Both mods have the upgraded contacts. Its odd even the mini 2.1 I have doesn't mimic the vape of the woodvill. I was just curious as to what causes the difference if the build on the atty was the same?
Would the new woodvills mimic the 18490 better than the metals?
Im getting plenty of vape from the grand, just not the same flavor as im getting from the woodvill.
Both mods have the upgraded contacts. Its odd even the mini 2.1 I have doesn't mimic the vape of the woodvill. I was just curious as to what causes the difference if the build on the atty was the same?
Would the new woodvills mimic the 18490 better than the metals?
I believe what your experiencing is the difference between passing current through insulated copper wire versus an aluminum body. Copper is a much better conductor of current when new than the aluminum body which provides a less conductive current path. So when current passes through the body of the mod it sees the entire mod as a distributed conductor. The copper wire should have a lower resistance/higher conductance and results in being overall more efficient assuming it is a large enough gauge for the current passing through it. I haven't tested this theory but I'll bet this is an accurate assumption. Brew
A freshly charged battery meters out to 4.2 volts. When a load, like firing a coil, is placed on the battery the voltage drops, this is caused by the internal resistance of the battery. Different batteries have different internal resistances and will then have different internal voltage drops. So the coil does not see 4.2 volts. Also even the same make and model of battery can have differences from one to the other and as you use and charge the battery, over time the resistance increases and thus the drop increases.
The mod itself will also have a voltage drop caused by the resistance of the wires, contacts RBA. This resistance increases the voltage drop and also lowers the voltage seen by the coil.
I should also mention that as the load increases, using lower ohm coils, the voltage drop that happens in the battery and the mod also increase.
So because your Reos are using different batteries they will have different voltage drops. Because the Reos have different contacts and paths for the current they will have different voltage drops as well.
I just ran these tests on a Woodvil 18490 with an AW 1200 18490 and a Grand with AW 1600. the Grand has new contacts old 510, the Woodvil has gold spring original top contact. I used the same RBA with a 1.3 ohm coil. I also tested an older AW 1100 18490 and Sony VTC 5.
AW 1600 internal drop battery voltage drop of .1 volts
Sony VTC 5 internal voltage drop of .14 volts
AW 1200 internal voltage drop of .16 volts
AW 1100 internal voltage drop of .14 volts
Woodvil voltage drop of .24 volts
Grand Voltage drop of .2 volts
With the AW 1600 against the AW 1200 the Grand is delivery more power to the coil 3.9 volts vs the Woodvil that is only getting 3.8 volts. If I use the AW 1100 against the Sony VTC5 then difference is only .04 volts.
These are not brand new batteries and each battery is different If I used other batteries the readings for internal resistance would change. If I ran a .3 ohm coils the drops and differences would increase as well.
If you have a multimeter we can read voltage at the coil on both mods and then adjust the coil on the Grand to produce the same watt vape as the 18490 Woodvil
The mod itself will also have a voltage drop caused by the resistance of the wires, contacts RBA. This resistance increases the voltage drop and also lowers the voltage seen by the coil.
I should also mention that as the load increases, using lower ohm coils, the voltage drop that happens in the battery and the mod also increase.
So because your Reos are using different batteries they will have different voltage drops. Because the Reos have different contacts and paths for the current they will have different voltage drops as well.
I just ran these tests on a Woodvil 18490 with an AW 1200 18490 and a Grand with AW 1600. the Grand has new contacts old 510, the Woodvil has gold spring original top contact. I used the same RBA with a 1.3 ohm coil. I also tested an older AW 1100 18490 and Sony VTC 5.
AW 1600 internal drop battery voltage drop of .1 volts
Sony VTC 5 internal voltage drop of .14 volts
AW 1200 internal voltage drop of .16 volts
AW 1100 internal voltage drop of .14 volts
Woodvil voltage drop of .24 volts
Grand Voltage drop of .2 volts
With the AW 1600 against the AW 1200 the Grand is delivery more power to the coil 3.9 volts vs the Woodvil that is only getting 3.8 volts. If I use the AW 1100 against the Sony VTC5 then difference is only .04 volts.
These are not brand new batteries and each battery is different If I used other batteries the readings for internal resistance would change. If I ran a .3 ohm coils the drops and differences would increase as well.
If you have a multimeter we can read voltage at the coil on both mods and then adjust the coil on the Grand to produce the same watt vape as the 18490 Woodvil
Interesting that you bring that up fatherdano since I was wondering the exact same thing recently. I have two 18490 Woodvils that seem to consistently give better flavor than my Mini 2.1's, with same atty, same build, same wick material and same battery. It sounds crazy. I think it might simply be the aesthetics and rounder shape making for a more "comfortable" vape which makes it seem better. Also they are a consistent performer since they need no switch contact maintenance. That's all I can think of. I've had these 18490 Woodies for just over a year now and only recently began to fully appreciate how much I like them and how good they are. I appreciate all my Reo's but these two stand out. Maybe its just a "wood thing"...who knows.
Probably, and especially if its the same wood type as your 18490 Woodvil, is my guess.
Thanks
Im not dissatisfied with either vape, just like the flavor better on the 18490 and was trying to duplicate it on the grand. One more wrap on the Grand instead of one less on the woodvill might equal them out?
Im not dissatisfied with either vape, just like the flavor better on the 18490 and was trying to duplicate it on the grand. One more wrap on the Grand instead of one less on the woodvill might equal them out?
either get a hold a meter and we can get more specific or trial an error works too.
I knew somebody WOOD test this...
Perhaps better flavor is actually due to less voltage (per FB's testing), a cooler vape resulting in more flavor. I know being a "flavor chaser" myself that higher wattage does not equate to better flavor for me...just a thought. Brew
Perhaps better flavor is actually due to less voltage (per FB's testing), a cooler vape resulting in more flavor. I know being a "flavor chaser" myself that higher wattage does not equate to better flavor for me...just a thought. Brew
Here's a thought...did you try and switch the RM2's...maybe something's going on there? could be a chance thing where the RM2/510 center pin mating is better on the Woody
As far as the Aluminium body of the Grand being a factor...while that's a good theory, it's simply not true...there's more to just than conductor type (copper vs. alum.), you also have to take into consideration conductor size. While you're right that copper is a slightly better conductor, the Grand has a lot of aluminium. if you where to squish a Grand into the shape of a wire that would be one mother of a fat wire. In an "all out" performance match, a Grand will best a Woody any day.
I build a lot of mods and as an ex electrician, I know what to avoid to minimize V drop...bottom line, not to say a Woody is a slouch, but a properly set up Grand with a clean contact/batt terminal is about as good as it gets from a conduction perspective.
You may be right, less power could be the sweetspot and the Grand is over driving
As far as the Aluminium body of the Grand being a factor...while that's a good theory, it's simply not true...there's more to just than conductor type (copper vs. alum.), you also have to take into consideration conductor size. While you're right that copper is a slightly better conductor, the Grand has a lot of aluminium. if you where to squish a Grand into the shape of a wire that would be one mother of a fat wire. In an "all out" performance match, a Grand will best a Woody any day.
I build a lot of mods and as an ex electrician, I know what to avoid to minimize V drop...bottom line, not to say a Woody is a slouch, but a properly set up Grand with a clean contact/batt terminal is about as good as it gets from a conduction perspective.
You may be right, less power could be the sweetspot and the Grand is over driving
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