Anything cool to do with old car batteries??

[Chaos Theory]

Dispose of safely and properly.

This.

[e30-RTN]

Dispose of safely and properly.

Also this.

[Farbin Kaiber]

there's a solution that's not too hard to get which will totally de-sulfate the things.. so if you can get some of that and some fresh acid then you are in business. This is pretty common for larger more expensive batteries for forklifts and such.

personally i'd just haul them to autozone and be done with it.

This. Get a Hydrometer, and some new acid, refill and trickle charge them. For about 15-20 dollars, you have new batteries.

[browntown]

The batteries I have are good, or at least they were when they were put on the shelf. I think I could probably slow charge them up to working potential. The point is that I don't have any use for them and it seems like a waste to scrap them.

[Joe G]

1) Buy a huge microwave.
2) put battery(s) in it.
3) put microwave on 'high'.
4) set timer for 10 minutes.
5) push start with a really long stick.
6) see what happens.

[Turf1600]

Bind them all together and throw them in the pool of someone you hate.

[slammin.e28]

Make sure you wash them in a bathtub first. ;)

[5spoke]

1. Find something in the garage you don't need any more like an old frying pan
2. Make Craigslist ad pairing battery and said frying pan for $20.
2. Profit.

[Car Addict]

Drink them tastes like coffee mixed with OJ and gasoline.

[imsotyerred]

nipple clamps, get them

[Mlarsen]

Make meth. I kid, sell them.

[vivalegreg]

1) Buy a huge microwave.
2) put battery(s) in it.
3) put microwave on 'high'.
4) set timer for 10 minutes.
5) push start with a really long stick.
6) see what happens.

i can only imagine how insane this would be

[mikeedler]

punch a hole in them, drain into a bucket, then proceed to wash your car with it. who knows, it could be the new kool thing to do.

[NigelStu]

Use them as the energy storage for a home built wind powered garage heater.

[Atreus]

bwahahaha, we dropped phone books off overpasses. ahh the days of being young and really fucking dumb. :D

i don't know what i'd do with them. especially at this time of year. aside from disposing properly, but what fun is that...