Baking soda
Water
Sprinkle
baking soda on battery terminals to neutralize the battery acid. Spritz
with water to dampen. Let set for an hour or so, then sponge off the
baking soda with water. Air-dry.
The 'Good' Antifreeze
A
less-toxic antifreeze than the commonly used ethylene glycol is
available and sold by automotive supply stores. The "good" kind is made
of propylene glycol, which is safe enough to be used as a food additive;
ethylene glycol is so toxic it's a household hazardous waste.
Here's
an additional caution regarding ethylene glycol: If you have a septic
system. do not pour ethylene glycol down the drain. If you are on
municipal water, dilute this antifreeze before pouring it down the drain
or, better yet, save it for your community's household hazardous waste
pickup day. Some service stations recycle this antifreeze, too. More car care resources see here.