A normal charger can be used to charge the battery. The battery can also be charged with a special device for fast charging. The charging current should be from 3 to 25 A; charging voltage - from 14 to 15.5 V.
Charge the battery only in the open air or in a well-ventilated area.
If the electrolyte level is low, for example when operating in hot weather, add distilled water.
If the car has not been used for more than 6 weeks, remove the battery and recharge it. The optimal storage temperature for the battery is from 0 to 27°C. At these temperatures, self-discharge of the battery is minimal. After three months of storage, the battery must be recharged.
Original version of the article on the website MazBook.ru
Regularly clean the battery contacts and lubricate them with petroleum jelly or a special protective lubricant.
Jump starters should only be used in exceptional cases, as a very high current will flow through the battery for a short time. If the battery has been stored for a long time, it should not be charged with a quick charger.
Caution: Do not operate the starting device without simultaneously engaging the starter.