redmondjp
Well-known member
Clean with a baking soda and water mix, make a paste from it, then brush with a stiff copper wire brush ... the kind that look like a tooth brush work good. If you had some bad batteries in it, fill the body with a watery mixture and rinse well.
You have your chemistry backwards. Batteries are alkaline = a base (pH > 7). You don't use a base (baking soda) to neutralize a base, you want to use a weak acid instead. I prefer vinegar, followed by a demineralized water rinse.