Hi James.

If you look for rechargeables I would try LiFePO4 based ones
( they are produced in different packages including AA/AAA
  but have double voltage of that regular alcaline AA battery )

http://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery

I've seen them on Ebay.


WBR Dmitriy.



James Newton wrote:
>=20
> Apparently they provide about 43% longer life over Duracell at high
> discharge rates and also last longer in mid to low power applications and
> MUCH longer (double) the shelf life.
>=20
> http://www.panasonic.com/evolta/
>=20
> Interestingly enough, the price seems to be about the same. They were say=
ing
> the price would be about 15% higher, but compared to Duracell, my informa=
l
> survey seems to show the price is about equal.
>=20
> And they have a fun way of promoting it:
> http://www.gizmag.com/panasonic-evolta-robot-ironman-challenge/19858
> The previously did a "Lemans" thing where the little robot ran around a
> track for 24 hours, 14.82 miles, on 2 AA batteries setting a Guinness wor=
ld
> record for "the world's longest lasting alkaline battery"
> http://www.guinnessworldrecords.com/records-5000/longest-lasting-aa-alkal=
ine
> -battery-cell/
>=20
> There is also a rechargeable version, but I can't seem to find the specs =
on
> it other than "NEW! +30%!"
>=20
> Curious if anyone has looked deeper or found any problems? I've had reall=
y
> bad luck with Panasonic batteries in the past, so this news comes with a
> heavy dose of "yeah right"
>=20
> --
> James Newton
> 1-970-462-7764
>=20
> --
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--=20
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