Alkaline Button Cell battery AG3/LR41 for electronic items Mercury Free Low price with perfect performance and long ... potassium hydroxide3. Excellent resistance to leakage and can be stored for a long period of time4. Offer two-year warranty5. ... CE/RoHS/SGS Applications:Watch, Clock, Electronical toys, LED lights, Calculator, Laser pointers, Photograhic equipments, Torches, Remote controls and so on ...