Can a maintenance-free battery be charged? A few hours is most suitable

Since the consumption of maintenance-free battery electrolyte is very small, there is basically no need to add distilled water during the service life, but it is not completely maintenance-free, and some external maintenance is still performed. If the maintenance is in place, it can not only extend its service life, but also eliminate potential safety hazards in time. The maintenance-free battery also needs to be charged. How many hours is the most appropriate to charge? Let's understand it below.

Due to the self-discharge characteristics of the battery, there will be a natural loss of power during the parking period of the car. If the car battery is out of power, it will not only affect the use of electrical equipment in the car, but also make it difficult to start the car, and even the situation may not start. Therefore, the battery should be charged in time when the battery is dead, and the maintenance-free battery does not require frequent maintenance, but it also needs to be charged.

Generally, the charging time of maintenance-free batteries ranges from 10-20 hours, depending on the charging current. If the charging current is large, the charging time will be shorter, and if the charging current is small, the time will be longer. Usually the charging current of the battery is one-tenth of the battery capacity.

Taking a 12V60Ah battery as an example, the charging current should be 6A. If the battery is completely used up, it will take about 8-10 hours to charge. If you charge with low current, you need to charge for about 12 hours to fully charge. However, it should be noted that it is best not to charge again when the battery is dead. It is recommended to charge when the battery is about 70%. At this time, it only takes 6-8 hours to fully charge.