Quote:
Originally Posted by tte404
Use a wire brush as HKGhost said. Sometimes the Deans connector will have a patina, that may or may not affect the connection from one end to another. A light acid will also work, dip the connector ends in and take them out then neutralize with any base such as vinegar.
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Vinegar = 5% acetic acid = not a base... baking soda (sodium bicarbonate) is.