Stormi, I'll try:
1. Take the o-ring off the fob cap. It's fragile and easily gets ruined when drilling.
2. Cut off the top keyring nub and file/sand top surface smooth.
3. Drill hole for atty connector in fob cap and another for battery connector in fob bottom. Depending on your tools start with a smaller hole and gradually expand the hole by filing/ sanding. A press fit is desired.
4. Solder a wire, 2-4 inches, (26awg is beefier and helps hold needle in place better than 28awg) in the bottom connector, sealing bottom hole with the solder.
5. Choose a needle that clears through atty connector hole and atty. Not too snug, not too loose. Using a small 510 connector (madvapes) a 18G is good for me. 20G might be good too, YMMV.
6. Remove plastic from end of needle and most of the glue too. Leave the topmost ridge of glue. Trim/blunt needle so that it will still protrude through connector when at its lowest point in the fob (so the top of needle can't escape into fob) . Rough up the needle with a file in the middle of the remaining section.
7. Solder other end of wire to the middle of needle and make sure it stays. Tinning the wire and wrapping it around the needle helps, as does having the blob go around the needle. Tinning the needle could work too, I didn't.
8. Place a small section of heatshrink tubing on the bottom of the needle up to the ridge of remaining glue that protects teh bottom of the needle from shorting.
9. Reassemble the bottom connector and apply the glue of your choice to the fob bottom (outside) and press fit connector into the bottom of the fob. Also glue side holes of connector, The entire bottom portion should be airtight. Let glue cure completely.
10. Assemble all the parts, coiling the wire inside the fob and positioning the needle somewhat in line with the cap. Because the wire in the bottom keeps the needle askew, it is always in contact with the top connector or atty maintaining the positive connection, and the negative through the fob body.
Now you are done, so add juice and set the needle to a good height. A little practice and you'll have quite the vaping session



