×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

AA Batteries

AA Batteries

AA Batteries

(OP)
Does anyone know the shelf life of a AA Battery. How soon does the battery start to degrade? How long before it is out of spec?

Thanks

RE: AA Batteries

All batteries write shelf life on it self. If storage was good, it's spec good for until this date.

RE: AA Batteries

Not all batteries have the shelf life on the label.

You don't mention the construction of the battery.  That's the governing factor.  Rules of thumb:

Carbon          6 months
Alkaline        1 year
Mercury         1.5 years
Lithium         6 years
Nickel-Cadmium  2 weeks
Nickel-Hydride  2-4 days
Lithium Ion     Ah...I don't know, they're too new.

Of course, we're assuming storage in ideal conditions.  Cold helps some of these and hurts others for instance.  

The shelf life is the time it takes to lose half the available power.  The batteries will begin to degrade as soon as it's built.  It also is non-linear.  Some batteries lose a lot of power quickly then flaten out, and some hold for a long time and then just die.  

If you want anything more specific than this, you have to check the manufacturers specifications for particular types.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources