A metal golf cup of a cylindrical shape includes a severable, plastic sleeve disposed therein. The first negative lens has a meniscus shape convex to the object side. The device includes a second electrode spaced away from the first electrode, the second electrode having an inner surface surrounding the memory element to contact the memory element at a second contact surface. These non-orthogonal slots, when coupling to corresponding non-orthogonal rails in the pocket of a battery charger, allow batteries of various sizes to be inserted into a single charger pocket with reliable and consistent electrical connections between the electrical contacts of the pocket and the charging terminals of the battery. Also provided are novel processes for producing same in substantially pure form and a process for producing pharmaceutically pure amorphous donepezil hydrochloride therefrom.