are there any 3v AA out there

[Blue72]

I have only seen 1.5 or 3.6

 

[VidPro]

there exists rechargable 1/2AA cells, would that meet your needs? its as close as i can figure to get that sort of voltage, in that sort of size.

 

[Fallingwater]

I *think* there are specialty lithium primaries that can be had in 3v flavours, but don't quote me on that...

 

[koala]

14500 3.6v lithium ion is ok, you can install a diode to drop the voltage?

 

[Fallingwater]

Guess you can, but it'd have to be a homemade hack. I've seen no regulated 14500s, since there's no need to make them compatible with previously used 3v primaries (as it is with RCR123s).
Most 14500-powered flashlights are meant to either use the one 3.7v cell or a combination of one to three AAs, so there's no market for a 3v 14500.

 

[LEDninja]

Rechargeable LiFePO4 14500 3.0V 450mAh Battery???
I have no idea what chargers to use with them.

 

[Fallingwater]

Hey, you're right! I didn't think of those.
Voltage is actually 3.2 nominal, but closer than anything else I think.

 

[Marduke]

I think the question is, why would you need 3.0v and not 3.7?? Anything designed to take anything other than an alkaline AA size battery is designed for a 3.7v 14500.

 

[Illum]

maybe the question is asked out of curiosity alone?
dd61999, can you tell us what do you plan on using 3V AAs for?

if you absolutely must have 3V over 3.7 your going to need a step down [buck] converter that cuts out around 3V to use 14500s [the closest to an AA li-ion as it gets really] and the cutout is to prevent overdischarge if you dont plan on using protected cells.

 

[DavidD]

I don't know what the OP's reason for asking is, but a 3V AA could be used in a Fenix L1D and still retain all levels, while allowing for the simplicity of using a normal AA in an emergency.

 

[Face]

There is a digital camera battery available which is made from basically 2x 3v AA cells.

If you pull off the wrapper, you're left with the individual cells. I use one in a cut-down AA mini-mag with a terralux souel drop-in. Works fine.

I think I bought a Panasonic branded one and it was called something like a CR-V3 or something like that.

Face

Edit: I'm sure I bought one of these

http://www.mx2.co.uk/default.asp?part=CRV3

Just didn't buy it from here!

 

[PJD]

Duracell Ultra CRV3 lithium camera batteries are comprised of (2) 3V AA size lithium cells in parallel. However, they are a bit pricey at around $15 to $17 retail. DON'T get the Energizer CRV3 cells...they're comprised of (2) 1.5V lithium cells in series. FYI...

PJD

 

[Fallingwater]

I don't know what the OP's reason for asking is, but a 3V AA could be used in a Fenix L1D and still retain all levels, while allowing for the simplicity of using a normal AA in an emergency.

Right.
A LiFe 14500 would probably work just fine.

 

[Blue72]

maybe the question is asked out of curiosity alone?
dd61999, can you tell us what do you plan on using 3V AAs for?

if you absolutely must have 3V over 3.7 your going to need a step down [buck] converter that cuts out around 3V to use 14500s [the closest to an AA li-ion as it gets really] and the cutout is to prevent overdischarge if you dont plan on using protected cells.

I am looking to get two cut down minimags one with a smjled and the other with terralux tle-5ex cree drop in. A single alkaline would have reduced output and I am concerned a 3.6v would be to much and burn out the drop ins.

 

[LEDninja]

I am looking to get two cut down minimags one with a smjled and the other with terralux tle-5ex cree drop in. A single alkaline would have reduced output and I am concerned a 3.6v would be to much and burn out the drop ins.

Do you need the focus-ability of the minimags?
If not I would get a MTE 1xAA SSC-P4 42180-U Flashlight instead of the tle-5ex
0.5W AA Japan Nichia Flashlight instead of the smjled.
Or I get a Fenix L1T V2.0 RB80 instead of both minimags. Choice of smjled level output with long runtime or bright with less runtime by just twisting the head.
Regular AAs. No funny batteries required. Of course as DavidD pointed out if you use a 3V AA you can get L2T brightness in the L1T and still have the ability to use normal AAs. Note most Fenix lights are not designed for and do not work with 3.6V batteries.

 

[Blue72]

Do you need the focus-ability of the minimags?
If not I would get a MTE 1xAA SSC-P4 42180-U Flashlight instead of the tle-5ex
0.5W AA Japan Nichia Flashlight instead of the smjled.
Or I get a Fenix L1T V2.0 RB80 instead of both minimags. Choice of smjled level output with long runtime or bright with less runtime by just twisting the head.
Regular AAs. No funny batteries required. Of course as DavidD pointed out if you use a 3V AA you can get L2T brightness in the L1T and still have the ability to use normal AAs. Note most Fenix lights are not designed for and do not work with 3.6V batteries.

I am aware of the other lights, but I like modding maglites. Also the few chinese lights I got from deal extreme are poor in fit and finish.

 

[Marduke]

Do you need the focus-ability of the minimags?
If not I would get a MTE 1xAA SSC-P4 42180-U Flashlight instead of the tle-5ex
0.5W AA Japan Nichia Flashlight instead of the smjled.
Or I get a Fenix L1T V2.0 RB80 instead of both minimags. Choice of smjled level output with long runtime or bright with less runtime by just twisting the head.
Regular AAs. No funny batteries required. Of course as DavidD pointed out if you use a 3V AA you can get L2T brightness in the L1T and still have the ability to use normal AAs. Note most Fenix lights are not designed for and do not work with 3.6V batteries.

The L1T is rated to work with a 3.7v just fine. It's rated up to 4v. Fit an finish are the Fenix brand is head and shoulders above most you find on DX

 

[LEDninja]

The L1T is rated to work with a 3.7v just fine. It's rated up to 4v. Fit an finish are the Fenix brand is head and shoulders above most you find on DX

Where do you see that? The only place I see the 4V is at Lighthound. I do not trust lighthound as far as specs go. He seems to have different numbers than everyone else to justify selling Li-on batteries and chargers.

- Lighthound claims Ultrafire 602c 1 watt Luxeon can take 10440. Reports on CPF the LED is burning out. (the 602c/10440 bundle at DX uses a Lux-III which is more rugged)

- Lighthound claims L0D CE can use 10440. Neither Fenix nor any other dealer makes that claim. 4SEVENS posted warning against using that combo. There are many threads warning of the dangers.

- Lighthound claims P1D, P2D can use Li-ons. Many reports of low modes not working. It is obvios those torches were not designed to work with Li-ons.

- Lighthound claims L1T v2 can use 14500. I just tried it. Lost low mode. The L1T is NOT designed to work with 3.7V batteries.

I am aware of the other lights, but I like modding maglites. Also the few chinese lights I got from deal extreme are poor in fit and finish.

I am not handy, so I tend to buy finished products.

I bought 3 types of lights at DX.

The HF-1 Cree was intermittent and died within a week.

The 602c SSC worked OK but 1/2 of my batteries would not fit.

Other than a bit too long and the switch rather stiff the MTE was fine.
I ordered 3 more for Xmas presents, got them today. They all work fine. I am surprised how fast they drain batteries though. Took 1600 mAH NiMH from 1.3V to1.1V in roughly 1/2 hour.

-----

I tried running my minimag with boosted smjled module with 1 battery and a dummy cell. With fresh alkalines and NiMH it lit up but was very dim. With 14500 it was very bright - too bright. I think the led will have a very short life if run for an extended period.

 

[VidPro]

agrees with Ninja.
"works with" and stays regulated, and doesnt overdrive, are aparentally terminologies that are not usefull in marketing :wave:
seen and OWN many that sales and users have said "works with" and it does, just a wee bit out of spec :devil: but it does. it certannly isnt limited to any single dealer user or seller making those claims either.

most of the time i have to rearange things so it actually WILL. sometimes i just love the overdrive, but i would be lying to myself, if i thought it was staying in specs, and the meter often says nopers .

its about time somebody pointed that out , just soes people understand and stay a bit more intermittant with that kind of overdrive when the heat can be an issue.

4Die LEDs like the "SMJLED" item i got to work pretty great with 2x1.5v Lithium, worked pretty good at least while it sits around 3.3v or so. course i get them for less than the cost of a bulb, so if i fried it, there is more.

 

[TorchBoy]

There is a digital camera battery available which is made from basically 2x 3v AA cells.

If you pull off the wrapper, you're left with the individual cells. I use one in a cut-down AA mini-mag with a terralux souel drop-in. Works fine.

I think I bought a Panasonic branded one and it was called something like a CR-V3 or something like that.

Face

What d'ya know? http://en.wikipedia.org/wiki/CR-V3
And there's a rechargeable one. http://en.wikipedia.org/wiki/RCR-V3