There are two main types, one is a lead-acid battery with electrolyte and the other is a maintenance-free battery.

　　Lead-acid batteries have the advantages of stable voltage and low price; the disadvantages are low electrical energy stored per kilogram of batteries, short service life and frequent routine maintenance.

　　Maintenance-free batteries are shock-resistant, high-temperature resistant, small in size, and small in self-discharge, and their service life is generally twice that of lead-acid batteries.

　　Cold air reduces battery life

　　Charging is not close at hand anytime, anywhere

　　So always checking the battery becomes a must

　　Why your car battery is always replaced before others

　　Just like the body, if you love it, it will be healthier. The same is true for car batteries, which require our intimate care.

　　Some students fail to start the first time, and start the engine anxiously for the second or even the third time... In this way, starting the engine continuously will cause excessive battery discharge and damage.

　　There are also some students who always forget or deliberately leave the air conditioner on before turning off the flame, which will cause the air conditioner system to start automatically every time the ignition switch of the vehicle is turned on, causing the vehicle's instantaneous load power to be too high and damaging the battery. Other students are very forgetful, and always forget to turn off the lights in the car after parking the car. After the battery is consumed overnight, it will run out at any time.

　　What's more, after buying a car, let it accumulate dust in the garage, so that if the car is parked for a long time, the alarm will slowly consume the electricity in the battery.

　　So how to maintain the battery in winter

　　The maintenance of lead-acid batteries should pay attention to two aspects: one is to check the battery liquid level regularly, and its height should be between the maximum (MAX) and the minimum (MIN). The second is to clean and dredge the exhaust pipe, keep the exhaust pipe well ventilated, and discharge the exhaust gas generated during the charging process in time, otherwise it will cause the electrolyte to overflow from the filling hole, and even cause the battery to explode.

　　The maintenance-free battery is fully sealed, and there is no need to add distilled water and adjust the concentration of electrolyte. Its maintenance is very simple. Generally, the status of the battery is judged by the "magic eye" on the battery. The magic eye is green to indicate that the battery is sufficient; black indicates that the battery is insufficient and needs to be charged; gray or white indicates that the electrolyte is insufficient, and the battery should be replaced immediately.

　　What to do if the battery freezes

　　Once the battery liquid density drops, it will easily freeze. After the battery freezes, the vehicle will not start. At this time, you should remove the battery from the car, move it to a place with heating indoors, and install it after it has melted.