9v battery overheats

Jun 06, 2009 9 Replies

What would cause a 9v Duracell battery to heat up beyond (est.) 150 Fahr., not in use but when removed and in a trouser pocket? Aftter storing away the CO1 detector for the summer months, I pocketed the batttery while watching TV: and it heated up (rapidly) a couple of hours later: was almost too hot to hold when I chucked it outdoors onto the stone steps, cold this morning.


Shorted from something else in the pocket?

Did you have coins or keys in the pocket? Probably the terminals shorted on the metal and turned into a resistance heater.

uh oh, better check your Johnson for two red marks about the size and distance apart of 9v batteries terminals...

Dagger of love.

TDD

Dead short. Exposed rivet or a coin in your pocket, maybe? Or is your water and laundry soap leaving some sort of conductive residue in your clothes?

-- aem sends...

What pants were you wearing?

Touched something else metal. Maybe even a grommet holding the pocket seam on the inside. I have even had 1.5v. batteries short on my keys.

Man, they get hot.

Steve

Keys or change in your pocket shorted it out.

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