What does the red color on the battery indicate?

[DeSebastian]

Battery red indicates the need for charging, while green represents good condition, and white signifies insufficient fluid requiring replacement. Green, red, and white serve as the battery's charge indicator, commonly known as the "magic eye," providing a visual representation of the battery's current status. More details about car batteries are as follows: 1. Introduction: The car battery is an essential component of a vehicle, categorized into traditional lead-acid batteries and maintenance-free batteries. 2. Advantages: Utilizing lead-calcium alloy for the grid frame, these batteries produce less water decomposition during charging and have lower water evaporation. Coupled with a sealed structure, they release minimal sulfuric acid gas, offering advantages such as no need for fluid addition and longer charge retention compared to traditional batteries.