Standby Battery

a reserved battery also called standby battery is a primary battery where part is isolated until the battery needs to be used when long storage is required reserved batteries are often used since the active chemicals of the cell are segregated until needed thus reducing self-discharge a reserved battery is distinguished from a backup battery in that a reserve batteries and aired until it is activated while a backup battery is already functional even if it is not delivering current these batteries are used in radius Suns missiles projectile and bomb fuses and various weapon systems will note advertisements reserve batteries the principle is illustrated by the sale of dry charged car batteries where the electrolyte is added at the time of fail another example in singer batteries where the cell is sealed until use a tab is removed to admit there and activate the cell reserve batteries may