I wasn't going to buy an adapter from Drew, I was going to buy a full KR808D-1 since I didn't have any (functional) batteries.
I was thinking to myself last night.. I really should be taking pictures of this mod. But, when I get into the bowels of things I rarely take the time to document the procedure!
The mod is easy, and you don't need a lathe. But without a lathe you better have a steady hand or a tubing cutter that can make a clean cut without collapsing the material.
You'll need a dead 510
atty and a KR808D-1 (or Nebula, or VK) battery that no longer makes you smile.
1) Take the 808 battery apart. You want the threaded connector end intact. I got mine apart by carefully using my Dremel to slit down the side of the outer casing by the cartomizer end. It didn't take much slitting to allow me to pull the guts completely out.. without any damage to the internals. Remove the vacuum switch and all that paraphernalia from the threaded end (it's easy to break the plastic vacuum switch out.... it's just glued in place). All you want to have left is the threaded outer ring with the center pole and white insulator still in place. You don't need the negative (outer) wire... cut it out. You do need a short length of positive (center pole) wire. Mine was already broken (hence the battery failure) so I had to pop the center pole out and solder on a new short piece of wire.
2) Cut the outer casing of your 510
atty down so that it is 7/16" long when measured from the threaded end. Repeat... you want the outer casing to be about 7/16" long (not including the brass threaded section). This length is based on the standard thin band Joye
atty.
3) With the outer casing cut down it is easy to access the actual atomizer and take it apart. Remove the guts of the
atty completely... including the hidden inner sleeve which is wrapped in Kapton tape. You should end up with just a sleeve with the threaded end and center pole still intact... and a red and black wire sticking out. You can remove the black (negative) wire.
4) You want to create a small solder joint between the center pole wire on the
atty and the center pole wire from the battery connector. Cut the wires as short as you can while still being able to solder them together.
5) Insulate your solder connection. I used a dab of liquid electrical tape and then let it dry.
6) Coil the wire a bit so it will collapse up into the KR808D-1 battery connector and then press the battery connector into the
atty sleeve. It should go in pretty easily. I "faced" the jaws of my vice with two pieces of wood and used it as a press.
Your adapter is now done. You shold have an adapter that is about 3/4" long overall with the brass
atty threads on one end and the KR808D-1 battery threads on the other. The brass end screws into your 510 batteries, and the cartomizer screws onto the other end.
You will probably note that this setup has too much air flow (but that is a personal preference). To knock it back down to "stock" airflow performance, plug the center hole in either the
atty or battery end of the adapter. A blob of silicone caulk will work fine.
There you go!
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