How Often Should a Corolla Battery Be Replaced?

[MacMaddox]

Corolla batteries generally need to be replaced every 3-4 years. Here are methods to determine when a battery replacement is necessary: 1. Measure voltage: Normally, the no-load voltage of a battery is around 13V. If the no-load voltage is below 10V during testing, it indicates that the battery needs replacement. Failure to replace it promptly may result in difficulty starting the vehicle or complete failure to start. 2. Inspect appearance: Check if there is any bulging around the battery, which signifies that the battery has reached the end of its lifespan and must be replaced. Additionally, look for white or green powdery substances around the battery, as these oxides indicate that the battery has reached its service life. 3. Check the charge indicator: For maintenance-free batteries, the charge indicator can be used to assess the condition. Green indicates sufficient charge, yellow indicates slight discharge, and black means the battery needs replacement.