Car battery popping sound

[Kaizen]

Have a few car batteries in the shelf and got a new charger. Did one perfect. Second one was on charger overnight as it’s a small charger. Noticed rice crispies snap crackle pop sounds from inside the sealed battery. Found some info talking about hydrogen but nothing conclusive.
Is this a sign of a short on one cell? I took it off charger and it continued the sound so I put it outside for safety. The case was not even warm.


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[LS6 Tommy]

A little bubbling on a lead acid battery during charging is "normal". "Crackling" is not "normal. I'd leave it off the charger until you can get that batter tested.

Tommy

 

[Kaizen]

Thanks. I’ve never heard it before. Not worth burning down the garage over


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[nadogail]

IMHO, that battery is probably out gassing. I believe that the gas, assuming the battery is a lead acid one, is flammable. I would put it into a well ventilated area and avoid any sparks or other ignition sources.

Had a battery blow up on me once when I hooked up a timing light. It was both dangerous and scared the **** out of me.

 

[Captain Spaulding]

Define “sealed battery”. Many are labelled maintenance free but aren’t sealed. An AGM on the other hand should never be making those noises.

 

[Kaizen]

Define “sealed battery”. Many are labelled maintenance free but aren’t sealed. An AGM on the other hand should never be making those noises.

No top part That comes off to top it off. Completely sealed


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