Hey,
I want my mom to have a light in her car. I want to use Lithium batterys because it will probably be there forever before its gonna be used. I thought about a 2AA Minimag "Match"-style or one of these cheap chinese flood-to-throw zoomies powered by 3 AAA cells. Now, these lights are DD on high.. fresh Lithium consumables have a voltage of 1.6-1.7.. thats about 5V.
So? Any experiences?
How about the Rosmin RC-G2 III from ShiningBeam?
I bought the RC-G2 II for my Mum and the RC-G2 III for myself.
Also I have found some good sources on OEM Energizer Ultimate Lithium AA batteries, they work out to be about $1 each instead of $5-6.50 each like in the shops.
The plan was to keep the RC-G2 III in my car with Energizer Ultimate Lithium batteries in the cheap 4xAA plastic battery cases.
But the problem is, I use that light so much now its never in my car any more. 
I leave a 501A in my car with a Solarforce low voltage drop in powered by CR123s so the heat and the cold won't cause problems.
http://www.solarforceflashlight-sales.com/product_detail.php?t=RB&s=10&id=207
This time, I'm not searching a new flashlight. The only thing I'm still missing is a very small EDC.. but this time I want to get "rid" of one of the lights I already have. :)
Its more about powering it.. are 3 Lithium batteries too much for an XRE? And if thats OK.. I need to find these cells cheaper than 5€ for 4.
I built a MatchMini originally using the low voltage drop-in recommended above (also by E1320 and it is a good one).
It runs on 2 primaries (or 1 L-ion) so no reason you can't run it on 2 of the Everyready lithiums just fine.
The max is 4.2v, so I wouldn't use 3 of the EverReady cells.
PS - It also helps to use a computer calendar to give you reminders of when to change or rotate batteries.
I have been experimenting with this driver it has an adjustable regulator with a pot screw to adjust it. It fits a P-60 pill and would be perfect for a mini mag drop in running AAs it's also easily converted to a single mode.
http://www.dealextreme.com/p/3w-19-mode-universal-regulated-circuit-board-for-flashlights-7882
I recommend a good 2xcr123 as well. Long shelf life, not bothered by cold or heat.
Maybe an S-mini, that's what I keep in my glovebox.
Mom picked a light and I ordered Energizer Lithium cells. Made it easy.. she took the brightest. :D
I definitely need the answer as well. And I am not firm with these standard battery flashlights.
I changed tires today and found a 2D flashlight in my car-tools and its already crap with new batteries but with the maxxel expired 2008 make less light than a candle. And the switch is faulty
The tech light lumen master 3xAAA has a faulty switch so its not recommend for a long time laying around unused…
So I decided to search for exactly the same, a lithium powered emergency lamp.
First some basics: AAA 1200mAh AA 3000mAh from energizer data sheets cr123 are not made for constant current discharge so I can’t find any tests of them and don’t want to use them.
Power: 3xAAA 5400mWh 1XAA 4500mWh
So maybe a cheap sk68 will be the perfect backup, it’s absolute cheap and runtime about 2 hours.
Any tips? Is there a bright 2 or 3 AA for cheap out there?
The three AA saik springs to mind but I think it an xr-e emitter, not the brightest but has potential.
I keep the ultraok tactical in my glove box, I have a king Kong in it and the 4aaa holster loaded with lithium primaries in there too, I just check voltage on the king Kong once a month. We don’t get the extremes of temperature here in the UK that most countries do but I may pull the king Kong for the winter if it looks like a harsh one and drop another pack of primaries in the glove box as back up.
New XM-L Light,, 26650/18650/4xAAA Good Price and 57mm head ......... NOTE: The star is solid aluminium !!! :bigsmile: that’s the ultraok link, it can also apparently take two cr123’s although I’ve not personally confirmed this.