Chegs
Veteran
- Joined
- Sep 15, 2013
- Messages
- 5,815
I have a box mod & 10 x 18650 batteries charged up.I have also got an LM2596 Step Down Adjustable power module.I have built several new coils recently,following youtube/POTV picture guides yet every one of them has come out approx double the ohms of others coils regardless of the wire thickness I use(presently only 0.2 left in any quantity)I got a new RBA yesterday,within a few minutes it was coiled & vaping like a good 'un.Because I'm used to CE4 type devices,I quit messing with the new RBA & went to watch some TV but when I tried to pick up the RBA I forgot what it was & grabbed the driptip which meant the tank+battery box tried to hide under the PC desk.When I'd finished swearing,I collected it off the floor & was pissed off to see that the box had landed on the coil+wick mounting plate & crushed it out of shape(coil+wick,not the plate)Oh bollocks! (more obscenity) etc.Made another coil+wick(3mm silica)but now it refuses to give decent vapes.I resumed using a CE4 while I experimented last night & most of today making more turns of wire than 4,less than 4,twisted pair etc etc but none of them are vaping anything like the 1st.
1) Insert sewing needle through length of 3 mm silica wick
2)wrap 4 turns of 0.2 kanthal round wick
3)insert wick into atty & trap 1 leg of coil under post
4)trap other wire leg under other post
5)trim off excess wire
6)fill tank with 60/40 banana juice
7)set volts to approx 3.7
8)use multimeter to check for shorts on coil/ohms etc
9)attach atty to box,hit fire button
10)swear cuz coil glows bright red & vapes taste dry/burnt etc
11)drop volts to 3.5 & now coil not glowing but also not producing much vapour
I have now decided this is beyond my comprehension & I need advice from someone.
The coil resistance is usually 3.0 ohms(+/- 0.1)unless I use twisted wire which gave me 4.2 ohms...every one of the how-to's or videos I've watched says should be 1.5 ohms(approx)
If I alter the voltage,the coil either glows red (& ruins the taste) or doesn't get hot enough to produce a satisfactory vapour so I tried using 2 x 18650's in series (8 volts approx) then turned it down using the LM2596 board to 3 volts before turning it up slowly until the coil turned red,then backed it off until the coil just lost its glow.This works just fine on a CE4 type device with any battery combination but the RBA just goes from burnt/dry to vapourless.
Is this because of the amperage available from 2 x 18650's?
1) Insert sewing needle through length of 3 mm silica wick
2)wrap 4 turns of 0.2 kanthal round wick
3)insert wick into atty & trap 1 leg of coil under post
4)trap other wire leg under other post
5)trim off excess wire
6)fill tank with 60/40 banana juice
7)set volts to approx 3.7
8)use multimeter to check for shorts on coil/ohms etc
9)attach atty to box,hit fire button
10)swear cuz coil glows bright red & vapes taste dry/burnt etc
11)drop volts to 3.5 & now coil not glowing but also not producing much vapour
I have now decided this is beyond my comprehension & I need advice from someone.
The coil resistance is usually 3.0 ohms(+/- 0.1)unless I use twisted wire which gave me 4.2 ohms...every one of the how-to's or videos I've watched says should be 1.5 ohms(approx)
If I alter the voltage,the coil either glows red (& ruins the taste) or doesn't get hot enough to produce a satisfactory vapour so I tried using 2 x 18650's in series (8 volts approx) then turned it down using the LM2596 board to 3 volts before turning it up slowly until the coil turned red,then backed it off until the coil just lost its glow.This works just fine on a CE4 type device with any battery combination but the RBA just goes from burnt/dry to vapourless.
Is this because of the amperage available from 2 x 18650's?
