How to Determine if the Battery is Dead

1 Answers
StAngelina
07/25/25 3:58pm
Methods to determine if the battery is dead: 1. The car won't start, and the engine makes a squealing sound when attempting to ignite; 2. Open the engine hood and observe the inspection hole on the battery—green indicates good condition, while black signifies a problem. Generally, there will be instructions on the battery's surface; 3. The battery warning light or engine warning light on the dashboard illuminates. A car battery is a type of storage battery, also known as an accumulator, which works by converting chemical energy into electrical energy. Typically, the term 'battery' refers to a lead-acid battery, which mainly uses lead and its oxides as electrodes and a sulfuric acid solution as the electrolyte.
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