Different battery has its special function, for example, dry start car battery means start, light and ignition, and it has three basic functions that work on all normal vehicles. The maintenance-free starter battery, also called the MF starter battery in short, is maintenance-free sealed with a port valve on top that opens when preset pressure occurs within the battery and allows it to drain excess gas pressure, then valve resets AND traction batteries are suitable for forklift trucks. So far, there are various kinds of automotive batteries made by China car battery manufacturer: durava.com, the parts include maintenance free battery, dry start car battery and forklift traction battery. People know that the battery is an important device for storing chemical energy and converting it into electricity. It consists of one or more electrochemical cells, each of which comprises two half cells or electrodes. A half cell, called a negative electrode, has an excess of small, negatively charg...