1. Can I use these batteries for my new Cortes ?

    Hey Fellow Tesoro MD'ers ! Just purchased a new Cortes, my first MD. In its manual it says to use Alkaline's or Ni-cads. I ordered theses NiMH 1.2 V, Energizers off Ebay. Can i safely use them in my machine without having ill effects or voiding my warranty ? Thanks for your time and advice, Todd