The issue of liability faces every building owner and facilities manager, regardless the type of facility the number of people who occupy it. Many building owners depend on in-house maintenance staffs to perform checks on emergency lighting systems. Most maintenance workers do not have time, or experience to provide regular and proper maintenance of these critical life-safety systems. Untrained personnel do not have the ability to check battery discharge rates, booster programming or determine if a charger circuit is charging properly. Building owners have learned that regular service and the upgrading of emergency lighting equipment can drastically reduce their labor, maintenance, installation and utility cost; thus, reducing their operating budgets while increasing the safety of their facilities. Outsourcing the maintenance of emergency lighting equipment with an expert firm is economical and labor saving, not to mention, it assures that everything will work properly when it's a genuine mains failure.