New 9 volt batteries - warm?

[Tina]

Has anyone experienced this and know what's up? Yesterday I was changing the battery in a smoke detector (I won't even go into the details of that nightmare) and ended up removing the detector temporarily until I can replace it (I have 5 other detectors in the house). However... I left the pack of brand new Duracell 9 volt batteries on the kitchen counter. 2 were left in the package, 2 were left out. I was just cleaning things up and found that the two batteries left out of the package are extremely warm to the touch. The dead battery I had removed was also laying there, but it was not warm. My countertop is Corian. Does anyone know why the batteries are warm after laying unused for about 18 hours? Should I be concerned?

 

[JR6ooo4]

were they ever in the sun for prolonged periods?

If they are warming up by themselves I would not trust them. cover the terminals and dispose of as directed.

Alkaline batteries are 100% biodegradable, last time I checked.

Mikeeee

 

[Tina]

were they ever in the sun for prolonged periods?

Nope. They were in a drawer for a few weeks until I opened the package yesterday. There is no sun near that area of the kitchen counter.

 

[Tina]

An additional note: after realizing they were warm, I put them back in the Duracell package. Now they are cooling down. I wonder if the battery has had some sort of reaction to the Corian countertop?

 

[Imzadi]

I wonder if there is extra ground metal minerals in the Corian that they were having a reaction to?

Try taking the batteries out again, separating them and laying them on a wooden, non-reactive surface.

 

[JR6ooo4]

I wonder if there is extra ground metal minerals in the Corian that they were having a reaction to?

As a ceramic artist, I make all of my own glazes so I know the ingredients. There are so many metals in the glazes that make up the colors, like copper for blue/green & iron for reds & rusty iron.

Try taking the batteries out again, separating them and laying them on a wooden, non-reactive surface.

9 volt style batteries have exposed terminals that are very easily shorted between. Were a pair of terminals touching another metal battery case, or anything else conductive?

test the voltage of the batteries and see if one or both is lower than a normally charged battery.

MIkeeee

 

[SandrA9810]

I've actually burnt a hole in my pocket from batteries and loose change.
In photopass, the flash uses 5 AA batteries, and everything has to be held in our pockets. So on occasion I've tossed them in my right pocket which is were I keep my change, even a foil wrapper from gum can make a connection. Usually I can feel it when they get burning hot, but on one occasion it actually put a burn hole in the pocket... oops. Finally they gave us little plastic containers that held 4 batteries, so only one is loose.

It's very possible something in the countertop created a reaction. I'd let them cool off and then use them.

 

[GeorgeG]

If they are installed backwards, which is sometimes easy to do in smoke detectors, they can heat up quickly. Aslo check to make sure the contact area is clean so the terminals aren't being shorted.