Does a car battery need to be replaced when it has 40% remaining charge?
1 Answers
A car battery with 40% remaining charge does not need to be replaced. The typical usage cycle of a car battery is 27 months. For regular household vehicles that are not frequently used, replacement can be done every 3-4 years, and subsequently every two years or so. For commercial vehicles like taxis that are used frequently, the battery may need replacement every year or around 8-10 months. However, the replacement cycle is only a reference, and the actual decision should be based on specific conditions. Methods to determine if a car battery needs replacement: Check the battery appearance: Look for obvious signs of swelling, deformation, or bulging, and check whether there are white or green powdery substances around the battery terminals or sides. These substances are battery oxides. High-quality or new batteries are less likely to oxidize. If oxides are present, it indicates a performance issue with the battery, and replacement is necessary. Check the charge indicator: Some maintenance-free batteries come with a charge indicator, usually displaying three colors: green, yellow, and black. Green indicates sufficient charge, yellow means slightly low charge, and black signals that the battery is nearing the end of its life and needs replacement. Measure the battery voltage: Use a battery tester or multimeter to measure the battery voltage to determine whether the car battery needs replacement.
