A maintenance-free car battery is a type of battery that is designed to require minimal maintenance during its lifespan. It is sealed and does not require the addition of water or electrolyte. These batteries are commonly used in modern vehicles and offer convenience to car owners.

XINGYUAN has 2 kinds maintenance-free car battery, including JIS (Japanese Industrial Standard) and DIN (Deutsches Institut für Normung), which are two different standards used to classify car batteries based on their physical dimensions and electrical specifications.

1. JIS Standard: The JIS standard is commonly used in Japan and other Asian countries. It specifies the physical dimensions and terminal layout of the battery. The JIS standard also provides information about the battery’s cold cranking amps (CCA) rating, which indicates its ability to start the engine in cold temperatures. JIS battery codes usually start with the letter “J.”

2. DIN Standard: The DIN standard is widely used in Europe and specifies the physical dimensions and terminal layout of the battery. DIN batteries are known for their robust construction and high-quality performance. The DIN standard also provides information about the battery’s cold cranking performance, capacity, and reserve capacity. DIN battery codes usually start with the letter “D.”

Both JIS and DIN standards ensure that car batteries meet specific requirements and can be properly fitted in vehicles. It is important for car owners to refer to their vehicle’s manual or consult with a professional to determine the appropriate battery size and specifications based on the JIS or DIN standard.