peterZA, Welcome to OUPower. Never let the plates go low. And as always Please use caution. Have very good ventilation. Remember to use a non Iron sand paper. Rinse with distilled water. And use a new pair of clean pliers to handle the plates. don't dry them!! put them in the cell box wet. Keep all your stainless steel separated from all contaminations. Dust, steel work bench, c-clamps, dirty work bench, oils, fingers prints..
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