Batteries are somewhat unique in that they pose both chemical and electrical hazards. Because electrolyte (chemical) hazards differ depending on the type of battery, the risks are product- and activity-specific.
Lead-acid batteries are chemical devices that store enormous amounts of energy. In-building or containerized battery energy storage facilities are a new and emerging development in power generation and distribution. Off-peak energy is captured and stored by battery storage systems for use during peak hours when more energy is required. Batteries are charged and discharged in energy storage systems.