need to find rechargeable lithium AA batteries

[rudeguy]

Anyone know if these exist? I have been buying the non-rechargeables for my son's insulin pump and would like to find some rechargeables.

Lil help?

 

[frostedflakes]

They do exist, but the chemistry is very different than alkaline, NiMH, etc. Li-ion cells operate at about 3.7V, so even though the form factor is the same, you can't just stick an AA Li-ion cell in a device designed for traditional AA cells.

Is there any reason you can't use NiMH batteries?

 

[arkcom]

Get some low-self discharge nimh like eneloops.

 

[thecoolnessrune]

I agree with the above posters. Rechargeable NiMH's are the way to go for standard size batteries. Rechargeable Lithium-ion or Lithium Polymer batteries have 3.7V charges rather than 1.2V charges.

 

[Itchrelief]

Nickel Zinc if you need higher voltage [edit than NiMH but lower than rechargeable lithiums]? Don't know very much about these things, however.

 

[shortylickens]

I didnt even know they made Lithium Ions in AA or AAA or C or D.
Go for one of the standard types. They do the job.

 

[rudeguy]

Originally posted by: frostedflakes
They do exist, but the chemistry is very different than alkaline, NiMH, etc. Li-ion cells operate at about 3.7V, so even though the form factor is the same, you can't just stick an AA Li-ion cell in a device designed for traditional AA cells.

Is there any reason you can't use NiMH batteries?

insulin pumps


His pump can use either NiMH or Li-ion. The pump manufacturer recommends Lio-ion.

 

[frostedflakes]

Ah ok. Well then definitely go for Li-ion if the device is designed for them. Unfortunately I don't really have any recommendation as far as brands for the batteries and charger, but I'm sure someone else here can offer some guidance on that.

 

[sciencewhiz]

Originally posted by: NSFW

Originally posted by: frostedflakes
They do exist, but the chemistry is very different than alkaline, NiMH, etc. Li-ion cells operate at about 3.7V, so even though the form factor is the same, you can't just stick an AA Li-ion cell in a device designed for traditional AA cells.

Is there any reason you can't use NiMH batteries?

insulin pumps


His pump can use either NiMH or Li-ion. The pump manufacturer recommends Lio-ion.

Rechargeable Li-ion and and Lithium are completely different. The pump manufacturer recommends Lithium batteries, which are non-rechargeable, and probably what you're already buying.

As frostedflakes said, you can't use lithium-ion batteries.

 

[rudeguy]

Originally posted by: sciencewhiz

Originally posted by: NSFW

Originally posted by: frostedflakes
They do exist, but the chemistry is very different than alkaline, NiMH, etc. Li-ion cells operate at about 3.7V, so even though the form factor is the same, you can't just stick an AA Li-ion cell in a device designed for traditional AA cells.

Is there any reason you can't use NiMH batteries?

insulin pumps


His pump can use either NiMH or Li-ion. The pump manufacturer recommends Lio-ion.

Rechargeable Li-ion and and Lithium are completely different. The pump manufacturer recommends Lithium batteries, which are non-rechargeable, and probably what you're already buying.

As frostedflakes said, you can't use lithium-ion batteries.

really? Thanks...I thought lithium and li-ion were the same thing.

 

[frostedflakes]

Good catch, I didn't even think about that. If they are talking about disposable lithium batteries, that's something completely different than rechargeable Li-ion.

 

[rudeguy]

yeah...my head is kinda scrambled today. My son's pump battery went dead at some point last night. He woke up puking with a BG of 530. Been working to get it back down and cleaning up puke all day.

I wish we had better hospitals around here.

 

[0roo0roo]

Originally posted by: NSFW

Originally posted by: sciencewhiz

Originally posted by: NSFW

Originally posted by: frostedflakes
They do exist, but the chemistry is very different than alkaline, NiMH, etc. Li-ion cells operate at about 3.7V, so even though the form factor is the same, you can't just stick an AA Li-ion cell in a device designed for traditional AA cells.

Is there any reason you can't use NiMH batteries?

insulin pumps


His pump can use either NiMH or Li-ion. The pump manufacturer recommends Lio-ion.

Rechargeable Li-ion and and Lithium are completely different. The pump manufacturer recommends Lithium batteries, which are non-rechargeable, and probably what you're already buying.

As frostedflakes said, you can't use lithium-ion batteries.

really? Thanks...I thought lithium and li-ion were the same thing.

nope, lithium does have its place, it can do temperature extremes and such.

 

[Eli]

Originally posted by: NSFW
yeah...my head is kinda scrambled today. My son's pump battery went dead at some point last night. He woke up puking with a BG of 530. Been working to get it back down and cleaning up puke all day.

I wish we had better hospitals around here.

That seems insane. Why can't you get him a pump that plugs into the wall, and has a battery backup?

 

[rudeguy]

Originally posted by: Eli

Originally posted by: NSFW
yeah...my head is kinda scrambled today. My son's pump battery went dead at some point last night. He woke up puking with a BG of 530. Been working to get it back down and cleaning up puke all day.

I wish we had better hospitals around here.

That seems insane. Why can't you get him a pump that plugs into the wall, and has a battery backup?

are you being serious?

 

[Eli]

Originally posted by: NSFW

Originally posted by: Eli

Originally posted by: NSFW
yeah...my head is kinda scrambled today. My son's pump battery went dead at some point last night. He woke up puking with a BG of 530. Been working to get it back down and cleaning up puke all day.

I wish we had better hospitals around here.

That seems insane. Why can't you get him a pump that plugs into the wall, and has a battery backup?

are you being serious?

???? Well, yes? Was what I said stupid or something??

I was being genuine. I don't know much about insulin pumps, but it seems like you wouldn't want something so important to be battery powered? What is wrong with the idea of a 120V powered one? I would assume such a device would also have a battery backup, you know.. in the event of a power failure??