How to Read Car Battery Model Numbers?

[BethanyMarie]

Methods for identifying car battery model numbers: 1. Check the number of series-connected individual cells; 2. Identify the battery type and characteristics; 3. Verify the battery's rated capacity and special features. Taking a battery with model number 6QAW54a as an example: 1. The number 6 indicates the battery consists of 6 individual cells. Since each cell has a rated voltage of 2V, the entire battery provides 12V; 2. Q denotes the battery's purpose as a starter battery for automobiles; 3. A and W represent the battery type, where A stands for dry-charged battery and W indicates maintenance-free battery; 4. 54 shows the battery's rated capacity is 54Ah; 5. The subscript a signifies the first improvement over the original product, while b would indicate the second improvement.