Car Charging System
| This section does not cite any references or sources. |
A load test can be used to evaluate the health of a car's battery. The tester consists of a large resistor that has a resistance similar to a car's starter motor and a meter to read the battery's output voltage both in the unloaded and loaded state. When the tester is used, the battery's open circuit voltage is checked first. If the open circuit voltage is below spec (12.6 volts for a fully charged battery), the battery is charged first. After reading the battery's open circuit voltage, the load is applied. When applied, it draws approximately the same current the car's starter motor would draw during cranking. Based on the specified cold cranking amperes of the battery, if the voltage under load falls below a certain point, the battery is bad. Load tests are also used on running cars to check the output of the car's alternator.
Read more about this topic: Load Testing
Famous quotes containing the words car, charging and/or system:
“The car has become the carapace, the protective and aggressive shell, of urban and suburban man.”
—Marshall McLuhan (1911–1980)
“... from Russia I didn’t bring out a single happy memory, only sad, tragic ones. The nightmare of pogroms, the brutality of Cossacks charging young Socialists, fear, shrieks of terror ...”
—Golda Meir (1898–1978)
“There are obvious places in which government can narrow the chasm between haves and have-nots. One is the public schools, which have been seen as the great leveler, the authentic melting pot. That, today, is nonsense. In his scathing study of the nation’s public school system entitled “Savage Inequalities,” Jonathan Kozol made manifest the truth: that we have a system that discriminates against the poor in everything from class size to curriculum.”
—Anna Quindlen (b. 1952)