Battery acid leak and blue corrosion...?
 

Hi, can someone tell me what is the best thing to do when your TX battery connector are going "rotten" with that blue stuff (copper sulfate??). Rub it of but then is their any simple product you can put to stop the corrosion eating the metal out??
Thanks to all!

Baking soda and water scrubbed with a toothbrush. If it's going to sit for a long time, take out the batteries.