Are 10mm Wrenches Always Used for Removing Car Batteries?

1 Answers
IkerDella
07/29/25 11:39am
Original vehicle battery terminal bolts typically require a 10mm wrench. Expanded information about car batteries is as follows: 1. Definition: The normal service life ranges from 1 to 8 years, largely depending on the vehicle's condition. With proper alternator charging and no electrical leakage to ground, the battery can generally last over 3 years. 2. Working Principle: It uses lead plates filled with sponge lead as the negative electrode, lead plates filled with lead dioxide as the positive electrode, and 22-28% dilute sulfuric acid as the electrolyte. During charging, electrical energy converts to chemical energy, while discharging converts chemical energy back to electrical energy. When discharging, metallic lead serves as the negative electrode, undergoing oxidation to form lead sulfate; lead dioxide acts as the positive electrode, undergoing reduction to also form lead sulfate.
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