Rechargeable lithium AA bateries

Hi,

Are there any rechargers for lithium AA batteries? If not, does anybody
know why not?

Thanks,

Conrad
Camp Sherman, Oregon

On 25 Oct 2006 05:30:00 -0700, "Conrad"
wrote:

Are there any rechargers for lithium AA batteries? If not, does anybody
know why not?

No, because lithium AA batteries are not rechargable.

--
John Bean

John Bean wrote:
On 25 Oct 2006 05:30:00 -0700, "Conrad"
wrote:

Are there any rechargers for lithium AA batteries? If not, does anybody
know why not?

No, because lithium AA batteries are not rechargable.

Rechargeable lithium types require more careful monitoring than other
rechargeable types. Dedicated packs and chargers enable the manufacturer
to control this. Making trchargeable AA cells available could lead to
dangerous problems if carelessly charged.
The new eneloop very low self discharge cells from Sanyo overcome much
of the objection to NiMH, although currently those available are limited
to 2000mah capacity.
Dave Cohen

In article . com,
"Conrad" wrote:

Are there any rechargers for lithium AA batteries? If not, does anybody
know why not?

AA lithium batteries, like the Energizer E2, are not rechargeable.
Lithium Ion batteries are rechargeable but are not made as AAs because
their voltage is too high (3.6V) to risk selling them. The appliances
designed for AA cells expect voltages around 1.2 to 1.5V per cell. It
would be possible to replace 2 series aligned AAs with one LiIon, but
sooner or later some dick-head would mess up, blow up his gear and the
lawyers would have a field day.

--
S. Nufkin
[I started life with nothing and still have most of it left]

Some AA battery cameras can also accept a rechargeable CRV3 lion battery
eg Many Olympus models that take AA's. One CRV3 takes the place of 2
AA's so the battery compartment for these is oval shaped.
There have also been a few cameras eg Ricoh Caplio G3 and some Samsung
models, that came with a rectangular Lion battery but could also accept
2 AA batteries.

Conrad wrote:
Hi,

Are there any rechargers for lithium AA batteries? If not, does anybody
know why not?

Thanks,

Conrad
Camp Sherman, Oregon

In article ,
Paul wrote:
Some AA battery cameras can also accept a rechargeable CRV3 lion battery
eg Many Olympus models that take AA's. One CRV3 takes the place of 2
AA's so the battery compartment for these is oval shaped.
There have also been a few cameras eg Ricoh Caplio G3 and some Samsung
models, that came with a rectangular Lion battery but could also accept
2 AA batteries.


....and the cells inside a LiIon CR-V3 are, in fact, rechargeable
14500 (AA) lithium-ion cells ... contrary to what several posters have
asserted in this thread. Yes, they exist, and standalone chargers designed
specifically for cylindrical lithium-ion cells certainly exist too. They
simply are not marketed as routine consumer items, for the reasons cited.

The problem, of course, is that their terminal voltage is 3.6V and it is
far easier to use them in pairs, wired in paralle inside a CR-V3 battery
pack with protective circuitry against LiIon nasties.

On Thu, 26 Oct 2006 12:34:36 +0000 (UTC),
(Mike S.) wrote:


...and the cells inside a LiIon CR-V3 are, in fact, rechargeable
14500 (AA) lithium-ion cells ... contrary to what several posters have
asserted in this thread.

The OP asked about AA lithium, not AA lithium-ion. As I
replied above, AA lithium cells are not rechargable.

--
John Bean

On Thu, 26 Oct 2006 12:34:36 +0000 (UTC), Mike S. wrote:

Some AA battery cameras can also accept a rechargeable CRV3 lion battery
eg Many Olympus models that take AA's. One CRV3 takes the place of 2
AA's so the battery compartment for these is oval shaped.
There have also been a few cameras eg Ricoh Caplio G3 and some Samsung
models, that came with a rectangular Lion battery but could also accept
2 AA batteries.


...and the cells inside a LiIon CR-V3 are, in fact, rechargeable
14500 (AA) lithium-ion cells ... contrary to what several posters have
asserted in this thread. Yes, they exist, and standalone chargers designed
specifically for cylindrical lithium-ion cells certainly exist too. They
simply are not marketed as routine consumer items, for the reasons cited.

The problem, of course, is that their terminal voltage is 3.6V and it is
far easier to use them in pairs, wired in paralle inside a CR-V3 battery
pack with protective circuitry against LiIon nasties.

That is incorrect. Just because a Li-Ion cell has the size and
shape of a AA cell, that does not make it a AA cell. Energizer does
NOT say that their CRV3 (ELCRV3) primary batteries are made from a
pair of AA cells. What they do say is that they're made up of two
CR14500 cells in a parallel configuration. Similarly, a
rechargeable Li-Ion version of the CRV3 would not be made from
Li-Ion AA cells. You're free to take a contrarian view and even
believe it, but you'll be lonely in your belief.

In article ,
ASAAR wrote:
On Thu, 26 Oct 2006 12:34:36 +0000 (UTC), Mike S. wrote:

Some AA battery cameras can also accept a rechargeable CRV3 lion battery
eg Many Olympus models that take AA's. One CRV3 takes the place of 2
AA's so the battery compartment for these is oval shaped.
There have also been a few cameras eg Ricoh Caplio G3 and some Samsung
models, that came with a rectangular Lion battery but could also accept
2 AA batteries.


...and the cells inside a LiIon CR-V3 are, in fact, rechargeable
14500 (AA) lithium-ion cells ... contrary to what several posters have
asserted in this thread. Yes, they exist, and standalone chargers designed
specifically for cylindrical lithium-ion cells certainly exist too. They
simply are not marketed as routine consumer items, for the reasons cited.

The problem, of course, is that their terminal voltage is 3.6V and it is
far easier to use them in pairs, wired in paralle inside a CR-V3 battery
pack with protective circuitry against LiIon nasties.

That is incorrect. Just because a Li-Ion cell has the size and
shape of a AA cell, that does not make it a AA cell. Energizer does
NOT say that their CRV3 (ELCRV3) primary batteries are made from a
pair of AA cells. What they do say is that they're made up of two
CR14500 cells in a parallel configuration. Similarly, a
rechargeable Li-Ion version of the CRV3 would not be made from
Li-Ion AA cells. You're free to take a contrarian view and even
believe it, but you'll be lonely in your belief.

Well then, the battery manufacturers themselves must hold that contrarian
view. Look at the data sheet from Saft, where they refer to their 14500
primary cells as "AA sized lithium cells".

http://www.saftbatteries.com/000-cor.../72-05_eng.pdf

On Thu, 26 Oct 2006 20:34:48 +0000 (UTC), Mike S. wrote:

That is incorrect. Just because a Li-Ion cell has the size and
shape of a AA cell, that does not make it a AA cell. Energizer does
NOT say that their CRV3 (ELCRV3) primary batteries are made from a
pair of AA cells. What they do say is that they're made up of two
CR14500 cells in a parallel configuration. Similarly, a
rechargeable Li-Ion version of the CRV3 would not be made from
Li-Ion AA cells. You're free to take a contrarian view and even
believe it, but you'll be lonely in your belief.

Well then, the battery manufacturers themselves must hold that contrarian
view. Look at the data sheet from Saft, where they refer to their 14500
primary cells as "AA sized lithium cells".

http://www.saftbatteries.com/000-cor.../72-05_eng.pdf

No need. You evidently have a language problem. Of course
they're AA sized, but that doesn't make them AA cells. Are you
normally this dense? How many lawsuits do you think Saft would be
bombarded with if they sold these to the public as AA cells? They
don't and won't and you not only enjoy being a contrarian, you also
have no qualms about embracing asinine views. I'm confident that
this isn't your first nor will it be the last.