See below pic for comparison of Quarks 123-2, 18650, & Nitecore D20. Quarks are the same diameter, 18650 is a inch longer at 5.45 (bezel to tailcap). 4sevens list the AA-2 length at 5.8".
Glad everything worked out well! Power outages in Winter can be difficult. Several years ago we experienced similar outages due to ice, some areas were down for a week :crazy:
You may want to consider a future backup plan.
Mine!
I'm using a 123x2 head on a 18650 body with good results since I prefer declining light output vs abrupt darkness. :D
Hopefully one of the experts will perform a output/runtime graph but I got 150 minutes on MAX with a EagleTac 2400 18650 cell that still measured 3.62 and producing a lot of...
I recently switched to 18650's as well. The Pila IBC is highly regarded twin bay charger. Tod at illuminationgear.com offers good service and a CPF discount. They also carry Eagletac 18650 2400 cells for $9.99 so I grabbed two of those as well. So far everything is working great!
My Quark 123-2...
I agree, the rechargable battery options offer more flexability. Swap out the dead battery with a charged one or regular primaries and you are back in action.
I recently picked up a new 4sevens Quark Tactical 123-2, 200+ lumens for 2 hrs on MAX. I added the 18650 battery tube to extend runtime...
You may want to consider adding the Quark 18650 tube and a quality rechargeable. I ran a Quark 123-2 head with the 18650 for 150 minutes on MAX and the cell still had 3.62 volts. I think 180 minutes is possible! :twothumbs
I recently picked up a Quark Tactical 123-2 & the 18650 body and really like it! Keep in mind the 17650 cell has better run time vs the RCR123s. The 18650 cell extends runtime further (2.5 + hrs. on MAX) but requires the Quark 18650 body.
Regarding primaries, the Battery Station Panasonic...