Battery question

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JoJo
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Battery question

Post by JoJo » 07 Nov 2012, 10:29

Since I am too old and fat to run, I am stockpiling at home (actually I don't have a place to run to). Anyway, I have a large quantity of lithium ion batteries for my lights but now I am looking into "D" cell batteries for my radios.

Has anyone used the new lithium ion "D" cells?

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jmz5
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Re: Battery question

Post by jmz5 » 07 Nov 2012, 11:24

I haven't yet, right now I don't have anything that takes D batteries. Be sure to rotate.
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MikeSantor
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Re: Battery question

Post by MikeSantor » 07 Nov 2012, 12:30

no Li Ion. Just nimh.

N4TAB-Tom
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Re: Battery question

Post by N4TAB-Tom » 07 Nov 2012, 15:55

WRT non-rechargeable Lithium D cells, I have had some experience. Have used them in extreme environments (near-space....120K ft). At -30C they can produce about 40%-50% of rated power. At typical ambient temperatures (25C), the capacity can be in the 13-15AH range. Some are available without an internal PTC protection circuit - beware - major fire/explosion hazard under short-circuit conditions.

JoJo
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Re: Battery question

Post by JoJo » 09 Nov 2012, 07:57

N4TAB-Tom wrote:WRT non-rechargeable Lithium D cells, I have had some experience. Have used them in extreme environments (near-space....120K ft). At -30C they can produce about 40%-50% of rated power. At typical ambient temperatures (25C), the capacity can be in the 13-15AH range. Some are available without an internal PTC protection circuit - beware - major fire/explosion hazard under short-circuit conditions.
I have used them for years in Photo & Video equipment but only the Sony brand....never had a problem except with a couple of Sony counterfeits. What brand did you use?

N4TAB-Tom
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Re: Battery question

Post by N4TAB-Tom » 09 Nov 2012, 11:12

Saft. Intentionally chose the non-protected cells due to the application's temp range. The PTC devices don't like -30C with a pulsatile load. We used an external temp compensated circuit for protection.

Mister Freeze
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Re: Battery question

Post by Mister Freeze » 09 Nov 2012, 17:50

Duracell now offers a 10 year storage guarantee. I think Energizer has a similar deal. Cheaper than Li.

JoJo
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Re: Battery question

Post by JoJo » 10 Nov 2012, 07:24

Mister Freeze wrote:Duracell now offers a 10 year storage guarantee. I think Energizer has a similar deal. Cheaper than Li.


Hmmmm! :ponder:

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jmz5
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Re: Battery question

Post by jmz5 » 14 Nov 2012, 15:32

I had an energizer lithium 123 that i saved for 7 years to test shelf life , it was dead when I finally tried to use it. The expiry was 2013
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