Long time lurker first time poster here. I've been meaning to ask a similar question, my old 9v battery boxes have battery leakage and 9v motor has completely rusted over the contacts, is there an easy way to get rid of the corrosion? I may or may not have put them in water in the 90s as a child... (I've managed to lose almost all the parts for my air tech claw rig since then -.-)