Battery And little wire

Don't cut the little wire. I'm only guessing, but I bet it is the voltage sensing wire for the charging circuit. As regards the corrosion, what form does it take? If it is "fluffy blue crystals", then it is very likely that the battery is cracked around the terminal, and what you are seeing is copper sulphate. You could try cleaning it very carefully and then using a proprietary sealant, or you could just get a new battery. Good luck DD

i would just pour a coke or pepsi on the terminals once a month been careful not to get it in the battery.

it will also keep the tray from rusting flush with water when done.

the case, minus a few cans!

The Coke has acid and will work I guess, but Pepsi probably will not do anything as it is a much more human-friendly drink without acids. You could just clean the terminals very thoroughly and then put some vasoline on them. But that really does not happen on most cars I have driven. So perhaps the battery is leaking.

mcbrue pepsily under the bridge in the trailer down by the river

Pepsi and coke are quite good liquids to loosen stuck nuts and bolts. Spray insect killers also...

Helar

What ever happened to using baking soda? That is if the cause is from actual battery acid.

Just grease the terminals