There are several points to note in battery maintenance.

Batteries that have been in use for more than 2 years require special attention and inspection Generally, the service life of a car battery is 2-3 years, and the original battery of a new car can be used for more than 3 years. Therefore, if your battery has been used for about 2 years, you need to be aware that its service life may have expired. At this time, you should conduct more inspections, carry out tests in advance, and deal with or replace the battery as soon as problems are found, so as to avoid losses caused by the sudden failure of the battery during use. What should be paid attention to after replacing the battery? A new battery may be in a state of insufficient power. Even the original battery in a newly produced new car may not have 100% power. Therefore, after replacing with a new battery or buying a new car, it is necessary to let the engine run for a longer time to ensure that the battery can be fully charged. Does leaving the vehicle unused for a long time harm the battery? Since the battery will self-discharge, if the vehicle is not used for a long time, it may lead to the depletion of the battery power, and eventually the vehicle cannot be started or the battery is damaged. If the vehicle is not used for a long time, it is better to restart it every half a month as much as possible, and let the engine run for about 20 minutes each time to recharge the battery.