AA lithium 3V

AlexGT

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I think I read a while back that the duracell CRV3 batteries had 2 3V AA in parallel inside the package, but I'm not sure.
 

kurni

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Be careful with those 3V AA; they're commonly used for MBU (Memory Back Up) and designed for slow (really slow) discharge. I'm guessing that it's not suitable for LED flashlight (e.g. L1D) unless you have a really small (really dim) led. I'm no expert; I don't know what happen if you try to discharge it too quickly; I'm guessing that it won't be good.

It's usually sold online; I think the main consumers are electronic manufacturers who need long-term (e.g. 10 years) continuous power (e.g. to retain RAM).
 

kurni

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That's interesting; I see many rechargeable CRV3. If we can split it into 2; does that mean that we actually can get 3V AA rechargeable?
 

Illum

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kurni said:
Be careful with those 3V AA; they're commonly used for MBU (Memory Back Up) and designed for slow (really slow) discharge. I'm guessing that it's not suitable for LED flashlight (e.g. L1D) unless you have a really small (really dim) led. I'm no expert; I don't know what happen if you try to discharge it too quickly; I'm guessing that it won't be good.

It's usually sold online; I think the main consumers are electronic manufacturers who need long-term (e.g. 10 years) continuous power (e.g. to retain RAM).

never heard of a "3V AA" lithium used for RAM or CMOS applications...most common are 3V button cells or 3.6V batteries like this

the closes thing I can think of is 1/2 AA 3V lithiums....:ohgeez:
 

gadget_lover

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Only the Duracell CRV3 used a pair of 3 volt lithiums in parallel. The others used 1.5 volt AA in series or custom cells of some sort. Search the CPF archives for 1/2 CRV3 for a thread on harvesting the cells.

I have no idea what's inside a rechargable CRV3. It is almost definitely not a pair of cells in parallel.

Daniel
 

kurni

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Illum_the_nation said:
never heard of a "3V AA" lithium used for RAM or CMOS applications...most common are 3V button cells or 3.6V batteries like this

the closes thing I can think of is 1/2 AA 3V lithiums....:ohgeez:

You're right, they're less common. 3V AA does float around though; this is one of them. I'm guessing that it's not suitable for many LED flashlights.
 

HiltiHome

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Rechargeable CRV3 batteries contain two 14430/3,7v LiON cells in parallel and a circuit to reduce the voltage and provide protection.

Primary 14500/3,0v lithium cells are available from several manufactures, like Varta, Saft, Sonnenschein and others.
They are used to backup memory modules in professional and military equipment at very low current.

There may be high current versions, like the cells used for CRV3 batteries,
but i would not trust the seller, as long as there is no official data sheet from the manufacturer provided.
 
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