Advancing Lead-Acid Battery technology
- Jul 14, 2021 4:30 pm GMT
The development of the classical lead-acid battery dates back over 160-years. During the very early years of the 20th century, battery-powered cars and delivery vans were popular in cities. The technology remained essentially unchanged over a period of decades with sulphuric acid held in an insulated container of bake-lite, ceramic and later plastic along with plates of lead and lead-oxide. During both world wars, submarines used battery power to travel while submerged.
Lead-acid batteries incur reduced service life when repeated operated in deep-discharge cycles, with 300-cycles being typical and inability to recharge after being fully discharged to zero. Partial discharge operation greatly extends usable service life. Cold temperature reduces performance with 20% of power available at minus 25 deg C (-13 deg F) as compared to plus 25 deg C (77 deg F). Repeated operation at temperatures above 50 deg C (120 deg F) reduces service life.
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