What are the differences between 20a and 12a batteries?

[Elle]

The differences between the two are: 1. Functional difference: ah, which is the unit of energy, where 'a' represents current and 'h' represents time, multiplied together. 12ah means it can discharge at 10a current for 1.2 hours, or at 6a current for 2 hours. 20ah means it can discharge at 10a current for 2 hours. 2. Appearance: The height of a 12AH battery is around 100mm, while the height of a 20AH battery is around 180mm. Additional information: 1. Check if the product markings on the electric vehicle battery are complete. These should include the manufacturer's name, product model, manufacturing date, and trademark. Ensure that the internal and external markings are consistent, especially checking if the product body has clear markings and the production date. 2. Pay attention to the appearance of the electric vehicle battery. Look for any deformations, cracks, scratches, or signs of leakage. The battery terminals should be clean, free of rust, and the markings should be clear.