Battery – a collection of lithium-ion cells governed by electronics packaged together to power portable electronic devices, such as notebook PCs. Also referred to as a battery pack.
Capacity – a measure of the amount of energy that a battery can deliver in a single discharge, normally listed in amp-hours or watt-hours. Over time, all rechargeable batteries eventually lose their ability to retain their original capacity. Sonata batteries are designed and built to retain 80% of their original capacity over three years (assuming 300 cycles per year)—the typical useful life of a notebook computer. Most conventional lithium-ion batteries can only retain 80% capacity for 200-300 cycles.
Cell – an electrochemical device capable of storing electrical energy. Notebook batteries contain cells and other components.
Cumulative Runtime – the collective runtime delivered by the battery over its entire service life. Conventional lithium-ion batteries deliver a cumulative runtime of about 800-1200 hours. Sonata delivers a cumulative runtime of over 4000 hours.
Cycle Life – the total life expectancy of a battery, expressed in charge/discharge cycles. A conventional lithium-ion battery has a typical cycle life of 200-300 charge/discharge cycles. Sonata has a typical cycle life of at least 1000 charge/discharge cycles.
Fade – to lose the ability to maintain battery charge. Over time all rechargeable batteries eventually lose their ability to hold charge. Conventional batteries begin to fade after just a hundred or so charges. Sonata retains its ability to maintain charge longer than conventional batteries, allowing users to enjoy several years of long battery runtime.
Lithium-ion Battery – a rechargeable battery commonly used in portable computers and other consumer electronics.
Retention – a battery’s ability to maintain charge. Over time all rechargeable batteries eventually lose their ability to retain charge. Conventional batteries retain less than 80% of their original capacity after 200-300 charge cycles. Sonata retains 80% of original capacity even after 1000 charge cycles.
Runtime – the amount of time a notebook can run before its battery needs to be recharged— usually about four hours for a new battery depending on individual notebook settings.
Service Life – the total life expectancy of a battery, expressed in time. A conventional lithium-ion battery has a typical service life of about a year. Sonata has a typical service life of at least three years.
