Medical Definition of anaphylactic. : of, relating to, affected by, or causing anaphylaxis or anaphylactic shock.
Part of the Electronics glossary: Battery life is a measure of battery performance and longevity, which can be quantified in several ways: as run time on a full charge, as estimated by a manufacturer in milliampere hours, or as the number of charge cycles until the end of useful life.
Average. The average life span of a cell phone battery is from 400 to 500 charge cycles. That means the average battery lasts from one to two years. A decrease in the duration of the battery's lifespan between charge cycles indicates that the battery should be replaced.Lithium ion batteries usually maintain their full capacity for most of their lifetimes, and then die suddenly.hat means the average battery lasts from one to two years. A decrease in the duration of the battery's lifespan between charge cycles indicates that the battery should be replaced. Lithium ion batteries usually maintain their full capacity for most of their lifetimes, and then die suddenly.