How to Test Whether a Car Battery is Good or Bad?
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Methods to test whether a car battery is good or bad: Before starting the vehicle, first use the voltage range of an analog multimeter to measure the no-load voltage of the battery. Typically, the rated voltage of a passenger car battery is 12V, and the no-load voltage is usually slightly around 13V. If the voltage is significantly lower, it indicates that the battery's health condition is not optimistic. A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The battery commonly referred to as a car battery is a lead-acid battery, which is mainly made of lead and its oxides, with a sulfuric acid solution as the electrolyte.