Check the main battery with a car battery to see the two data, the first one is what makes a good car battery voltage, and the second is the starting current. And check is preferably carried out (overnight better) in the cold state. In which the voltage value must be greater than 12V, if less than 12V to show that you are ready to say goodbye and this battery. Check the car battery voltage manufacturers, owners of a friend can do it yourself, get a universal table, take the battery positive and negative one on the line. 3, parking lights forget to turn off the lights parking forget divided into two categories, one is forgetting to close overnight parking of vehicles, "headlight", so one night down your car's battery must be "lying nest", the next day only to find people pump electricity. The second category are more likely to occur at night, when parking and other people, the vast majority of owners will choose to fuel the flame, but this time do not forget to adjust the headlights "width light" mode. Not only can protect the battery, but also serve as a warning of the use, and the car is not affected normal lighting. These three cases mentioned above, the battery damage is very large, although it may not see any problem in the short term, after the loss of battery power to find a car, "take power" can be properly started. But in the long run will shorten battery life, and save money compared to the oil that point gain. Car battery Agent | car battery | Wei Lai Po automotive batteries provided by Shenzhen Wei Lai Po Battery Limited. Shenzhen Wei Lai Po Battery Co., Ltd. (www.weilipo.com) strong, credible, in Shenzhen, Guangdong battery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wei Li Po battery and you hand in hand into the brilliant, for a better future!