I'm glad this got bumped up, it's refreshing to see a review based on the construction of the unit and not how the atomizer/juice perform. I've been eyeing a mod since I started vaping 3 weeks ago and this was on my radar from day 1.
Thanks for your kind words. This thread did fly under the radar for a bit, but I don't believe in bumping my own threads.
I am glad my review has enable you to draw the right conclusions in order to make an educated decision, without all the fanfare.
If you don't mind I had a few questions for owners of the precise 18650. Does it require special tools to do the maintenance?
This device does not require anything to do maintenance as such. The negative button contact can be removed with the flat tip of your tweezers or a screwdriver, in order to add or remove shims (spacers). From the factory the Precise line is set to go and has a button travel of 2mm.
You will receive the unit with a spare o-ring and some extra shims (no shims are fitted from the mfr). The Precise was designed around the AW battery line. IMHO it is the best battery money can buy at this time, and one that has proven to be the most consistent wrt battery specifications, especially wrt size.
No shims are fitted to the button sector (they are not required). Because the AM IMR 1600mAh 18650 battery is not protected (safer chemistry) it is a few mm shorter than the standard AW 2600mAh 18650. When utlising this battery, the extra o-ring is used to make up for the shorter battery. Adding the extra o-ring will increase the button travel, but the unit can accomodate this nicely. Should one prefer the standard shorter button travel, the addition of a couple of shims under the negative battery post will shorten button travel to your liking.
How often do you need to lubricate the parts, and what do you use?
To date, I have purposely not done maintenance on my unit. I wanted to see how long the unit can/would go without a decrease in performance. I received my unit on the 7/30 and have been using it as my main 3.7V device. The unit's performance hasn't changed over this time, nor is there any indication of oxydising at any of the contact points. The unit is shipped pre lubricated with Noalox and a re-application as yet to be conducted.
Have you had any issues with threads locking or not wanting to mesh properly?
The threads are smooth and fluid. I have had no issues with them what so ever. Only someone who is a complete clutz would be able to cross thread the unions, and that IMHO would be with some effort.
Has any liquid ever entered the battery compartment?
Nope, the battery compartment is sealed from the atty connection. The atty is slightly recessed in the connector cap where a small juice well is situated at the bottom. The positive post is a press fit to the cap, therefore rendering this well totally "watertight". Should liquid collect at the bottom a quick rinse with alcohol will render positive dividends.
When using different attys with the unit (the unit has a native 510 connection) should an atomizer leak, it will collect on the top on the unit and a quick wipe will take care of that. Becasue of the tight clearances, no liquid should be able to seap into the well unless the unit is left in an upright condition for an extended period of time, and even then because of the construction, no liquid will/can make its way to the battery housing.
I hope these clarifications were helpful. The Precise wears its name well, and wears well. Although if we look closely, the unit looks like the day I got it. It does not require any polishing as such to maintain its brilliance and is definitely not a fingerprint magnet. Normal wear and tear (ultra fine scratches) are visible up close, but that just adds owner induced character to the unit
Battery longevity of the unit using the AW 2600mAh batt, is 29 hrs before a re-charge is required YMMV. But one could reasonably expect 2 days of solid vaping with a single re-charge. This unit has become the unit I leave the house with. I equip it with a fresh 510 carto and carry a spare. To date I have yet to run out of vape. For longer journeys outside the home, I simply bring extra cartos
Depending on vaping styles, one can see theirselves through a 4 day WE withn the following equipment only:
- the unit;
- an extra atty;
- an extra battery; and
- 15ml of liquid.
Now that is keeping packing to a minimum