Matronics Email Lists :: View topic - OT-AA battery performance at low temp

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

OT-AA battery performance at low temp

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

raymondj(at)frontiernet.n
Guest

Posted: Tue Jan 13, 2015 2:40 pm Post subject: OT-AA battery performance at low temp

Greetings,



Does anyone know how the voltages of AA disposable lithium batteries and 

AA alkaline compare at temps in the neighborhood of -20F.



I'm trouble shooting a weather station with an intermittent problem and 

wondering if AA lithium will give more voltage/current, and possibly 

solve my problem.



Thanks,



do not archive



-- 

Raymond Julian

Kettle River, MN



The things we admire in men, kindness and generosity, openness, honesty, 

understanding and feeling are the concomitants of failure in our system. 

And those traits we detest, sharpness, greed, acquisitiveness, meanness, 

egotism and self-interest are the traits of success. And while men 

admire the quality of the first they love the produce of the second. 

-John Steinbeck, novelist, Nobel laureate (1902-1968)

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Bob McC

Joined: 09 Jan 2006
Posts: 258
Location: Toronto, ON

Posted: Tue Jan 13, 2015 7:28 pm Post subject: OT-AA battery performance at low temp

I can’t give any hard numbers, and don’t know about voltage/current

comparison details but I can provide a small bit of anecdotal information.

I’m Canadian living in a part of the country where we see temperatures

approaching -40º from time to time. I have a monitoring device on my hydro

meter powered by 2 AA batteries. The instructions which came with that

device said to use only lithium batteries as alkaline wouldn’t provide

accurate information in winter cold. They were correct. With lithium the

monitor works at all temperatures, with alkaline it becomes intermittent

near 0º and stops working altogether about -15º or so.



Bob McC



[quote] --

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

_________________
Bob McC
Falco #908
(just starting)

henry(at)pericynthion.org
Guest

Posted: Tue Jan 13, 2015 8:42 pm Post subject: OT-AA battery performance at low temp

Compared to alkalines, lithium primary cells have a slightly higher

nominal voltage than alkalines, lower internal resistance, a greater

total capacity, and hold up much better at low temperatures.  At -20 F

there will still be some capacity degradation compared to room

temperature, but I think you should have much better luck than with

alkalines.



Henry



On Tue, Jan 13, 2015 at 7:27 PM, Bob McCallum

<robert.mccallum2(at)sympatico.ca> wrote:

[quote] 



 I canâ€™t give any hard numbers, and donâ€™t know about voltage/current

 comparison details but I can provide a small bit of anecdotal information.

 Iâ€™m Canadian living in a part of the country where we see temperatures

 approaching -40Âº from time to time. I have a monitoring device on my hydro

 meter powered by 2 AA batteries. The instructions which came with that

 device said to use only lithium batteries as alkaline wouldnâ€™t provide

 accurate information in winter cold. They were correct. With lithium the

 monitor works at all temperatures, with alkaline it becomes intermittent

 near 0Âº and stops working altogether about -15Âº or so.



 Bob McC



> --

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum