Apparatus for preventing reverse polarity contact between a standard dry cell battery terminal and a battery compartment contact

An insert to be removably installed in a battery compartment having a plurality of a battery cradles and positive and negative device contacts disposed at opposing ends of each compartment cradle to contact a raised positive terminal button and a planar negative terminal surface of an installed standard dry cell battery, comprising:

• a base comprising a plurality of insert cradles each configured to fit into and conform with a corresponding compartment cradle and adapted to receive the installed dry cell battery;
• and
• a plurality of insulated spacers, each attached directly to an end of the base to form a single, integrated insert, wherein the spacer is substantially perpendicular with the base and has an aperture with a diameter greater than a diameter of the raised positive terminal button,
• whereby when the insert is positioned in the compartment so that the spacers of the inserts are adjacent to a positive device contacts, each of the plurality of insert cradles are unobtrusively proximate to a corresponding compartment cradle and the spacers each prevent reverse polarity contact between the positive device contact and the negative terminal of the battery while enabling the positive terminal button to contact the positive device contact through the aperture.