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.
Weak or dead battery. A car battery, by definition, has a finite life and will not last forever. As good as an alternator is at replenishing your car battery; it can only recharge it to the point that it has a decent amount of life left in it and is able to accept a charge.