Sorry djozz, late to the partyā¦ I have already re-built my Ti/Cu EDC Quad 219C to take the new Efest 18500 1000mAh cell, it now delivers much better output with the slightly higher capacity and discharge rate. (219C emitters, x4, ran some 2600 lumens on an 18350 but now makes 3400 lumens with the 18500. )
And Iām in the process of building a 2 Cell 20700 light with a 3 pound chunk of Tellurium Copper for the pill that will run 3 of the new XHP-50.2 emitters. The goal is in excess of 10,000 lumens, weāll see. Gotta find some 20700Aās if not the Cāsā¦ Just yesterday I spent 5 hours on the lathe and the light is taking shape. The tube is bored, knurled, threaded to fit into the copper pill, which has the driver bay ready and is mated at the top with the adaptive piece the bezel will thread onto. I have to wait now on the 63.7mm x 29.5mm triple reflector so I can finish the light. The 3 XHP-50.2ās are also comingā¦. it currently weighs 1442 grams, but will lose some weight with the inset of reflector and tapering/finning process.
The B cell does ok, I bored the tube of an older C8 that has ryansohās copper pill and the new XP-L2 emitter. With a Sony VTC6 I get slightly over 2000 lumens on this light, but with the new 20700B it āonlyā makes 1704 lumens. Canāt wait to see what the A cell does, when they become available again.
Thanks Heinrich, appreciate your review on these new cells and like you, am anxiously awaiting the new variantā¦
The only 21700 cell I have seen available for purchase (albeit with a 25pc minimum, from a company in Israel) is the Samsung INR21700-30T. Supposedly 30A (maybe 35A) and 3750mAh.
I know it is pretty hard to come by, but I would be interested in seeing these batteries tested:
Powerex Pro 2700 (these are new) and I believe are just Panasonic 2700 (2550mAh min)
I donāt blame you for being suspicious, but there are multiple reports in the other thread I linked of capacity around 1130mAh, and internal resistance as low as the best available 18350 cells.