Anyone know where I can get a rechargeable "AAAA"

[bicostp]

I CANNOT USE A 9V BATTERY I EXPLAINED THIS!

The 6 AAAA's in a 9V bat are 1.2V!

The AAAA that the device uses is 1.5V!

Than rechargeable AA, AAA, C, and D batteries are useless scams that obviously don't work properly in anything but a flashlight with a traditional light bulb because they're .3 volts short.

You do realize that after just a little use (or when a load is put on them), alkaline batteries drop to about 1.2 volts anyway, and the dead battery in the Bluetooth headset probably has less than half a volt in it (given the headset's power draw). As batteries get used up, they slowly fade. They don't put out 1.5 volts for months then suddenly drop to nothing. More than likely, the bluetooth headset has been running on 1.2v for weeks with no problems.

We have a Canon digital camera that runs perfectly fine off NiMh AAs, so do Gameboys, remote controls, my grandfather's glucose meter, and other battery powered electronics.

Just freakin' try it and see what happens. Worst case scenario it doesn't work and you're out 5 bucks. It's not that big of a deal.

But if your father really uses the phone constantly, a corded headset is a better solution. Not only do they NOT require batteries, but he'll be able to disable Bluetooth on his cell phone, therefore its battery will last longer, too.

[Valium]

Even take a look at the portables made here. Systems rated at 7.5v that will run off of a 7.2v battery.

[Dr. KillGood]

Well I tried the 1.2V batteries and they do not work in it.

[Bass Creator]

huh i just tried it guys it does work

[bicostp]

Some more information would be helpful in diagnosing the problem.

Is it in the right way?
Is it making contact on both ends (because I think those batteries don't have a point on the end like regular batteries do)?
Are the batteries charged? (They usually aren't charged out of the box.)
Are you just saying that out of spite? (Sorry but knowing you...)
If you connect alligator leads to both ends and hack a regular rechargeable AA to it, does it work?

If you try all of this and it doesn't work, you're stuck tracking disposable AAAs down. (Try around diabetic supplies, laser pointers, and stuff like that. Rat Shack should have them, too.)

[insert nag about corded headsets here]

[Dr. KillGood]

No I tested it with a multimeter 1.2V then I made sure it was touching both ends and all that, but it would not turn on.

[mothatrucka]

Out of curiousity, what does a DEAD pair from the headset register with your multimeter?