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This is an old MacBook Pro battery.


I started having trouble with the battery, so I took it out. It later turned into what you see. It's since been sitting on a shelf in my house for almost a year without changing noticably.

Is it dangerous, or is it something I can dispose of at my leisure? (you don't need to tell me that I can't just put it in general waste)

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It's probably one of the explosive ones Apple had recalled a few years back. – Daniel Beck Jan 11 '12 at 8:46
Hmm, you may be half-right. It's from a 17". This link seems relevant:… Looks like I'm not alone; I should have googled the model number from the battery case. – John Fouhy Jan 11 '12 at 9:08
up vote 2 down vote accepted

Its bloated, contains lithium, and could catch fire, which would be VERY bad. I'd say, get rid of it as soon as possible in case something does happen.

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