06/18/2014
I was able to unscrew the driver retaining ring by expanding the guide holes a little, then it came out pretty easy with a good needlenose:
Notice the brass center piece, in place of a usual spring. It's completely loose. I'm thinking this could/should be soldered to the driver:
The backside is completely clean. The brass button is held to the driver by force of the battery:
I removed the driver and MCPCB. There's lots of paste, no screws, and it's nice copper:
Almost 26 mm in diameter:
Driver, almost 28 mm:
Driver - main components is a MCU, FET, and inductor. Does this make it a buck? Will it work on 2 cells? Maybe?
There's the little guy - that R056. Think it need some piggyback companion?
Real copper, but is it a direct path? Well, was hoping for an overspill pad for the center thermal pad, but it didn't exist. The LED would have to be pulled to find out:
We were wondering if the heat sinking is good enough for high amps. Here's the weight of the bare head. It is a uni-body pill, and the pill top is part of the body and it measured ~1.8 mm thick:
Here's a HD2010 head, so, the M12 is actually a little heaver, maybe?
Well you sort of have to include the weight of the HD2010 pill, which is substantial. Maybe drop a couple of grams for the star and driver:
This is a concern. This is the pill top. It's actually black anodized, but the light is being reflected off of it in this pic:
The center is an indent, leftover from the machining process. The XinTD X3 has the same indent. The other ring around the center depression appears to be a slight bump or indent -- this is more concerning. The thermal grease they used is very thin, and pure white. There was a lot of it present, so I'm thinking there had to be a lot of gaps for it to hide in. I'm not liking this - I would normally attempt to sand this out, but since you would have to work down the housing, it's not easy. There is no other threaded joint at the pill top, so access is not so easy.
Battery Update - testing the capacity on the new V2 Opus charger, the 26700 tested at 5344 mAh (good news!), and a KK ICR 4000 button top tested at 4514 mAh. I haven't done many capacity tests on the Opus, so I'm not confident right now in it's accuracy, but couple others seemed to be in the ballpark.