I bought this to rebuild with a nice big stovetop coil and lay a mesh screen over the ceramic cup. I did succeed, but it was in no way worth the effort. I had read the discussion threads and knew there was glue on the bottom wires. I thought "no problem, I'll just soak it in acetone". Nope! Glue fully resists acetone. Tried to scrape it off with limited success. Wires broke off with part of themselves still firmly lodged in the channels. Finally after a bit of googling I found that torching it should fix both problems. I removed the ceramic cup and took it outside with my soldering tripod. I checked the wind and positioned myself so that the wind would blow the glue fumes away from me and torched the *&%^)%$ out of it. Let it cool, scrubbed it up, then repeated the process fully just to make sure all the glue was gone. The stuck wire bits came out easily after the first torching. Then I rebuilt it with a big friggin' nickel stovetop coil, drilled airflow, installed mesh screen and dry contents, and plopped it on my DNA40 for temp control. I'll consider this my proof-of-concept, but I'm definitely going to get something better to mod next time. I also replaced the existing mesh around the ceramic cup with aluminum foil cause I had damaged it too much messing around with the thing. The original negative wire was actually connected to the mesh (????) but I rebuilt it protank-style so the aluminum is just there for heat transfer and stability of the cup's position.

Bought this hoping it fits the full size TFV4 and I'm happy to report it fits perfectly. The juice intakes at the bottom are larger than the single coil RBA that came included with the full size TFV4 kit. I find it's much easier to get wicking properly. The included clapton coil is good and I'm actually using it. Because this RBA is smaller than the original size single coil RBA, you get a little more juice capacity when using this in your full size TFV4. It's so much better overall than the original, I threw my original RBA in the trash (after salvaging the screws of course).

This would be a perfect 5 if only they would have put a slightly longer 510 pin on it so I could use it on hybrids and mods that don't have quite enough adjustment to connect properly to flush pin atties. Performance is great. You need high wattage to use the premade coils, but you can use the RBA for whatever type of build you want.

So I finally decided to order batteries here to see how bad it is and if the batteries are real. The shipping time is indeed as bad as they say. But the batteries were extremely well packaged and somehow both of them arrived at exactly 3.66 volts, the same exact voltage as ones I bought in the USA. Both charged up just fine. Based on this and their performance, they are the real deal. I also ordered juice in the same order. This was a test. The juice was also perfectly packaged and not a single drop leaked. It seems the packaging on such potentially troublesome combinations has improved substantially.

Very good color - better than stock photos. Only con is the button which doesn't fire from every angle and may need to be re-tightened with your finger sometimes. The copper pin passed the magnet test.