How to determine the service life of a battery

　　The service life of a battery will vary greatly depending on how it is used, how it is maintained and recharged, temperature, and other factors. In addition, the type of battery will determine its service life.

　　12 Volt Gel or Sealed AGM Battery

　　If kept charged when not in use, the general life span of a 12-volt gel or Sealed AGM Battery can reach 6 years. In the case of an average ambient temperature of 25 ºC, after five or six years of floating voltage, the battery still retains 80% of its original capacity. A higher average temperature will shorten the life of the battery. The number of charges and discharge cycles of a 12-volt battery is closely related to its structure and quality. Mastervolt's 12-volt gel battery can carry out approximately 500 complete cycles, discharge to 20%, and then recharge to full capacity.

　　Most manufacturers believe that the remaining capacity of the battery is 80%. However, this does not mean that the battery must be replaced immediately. For example, if only 50% of the battery capacity is actually needed, the battery can still be used. Therefore, there is no need to replace the battery after six years or 500 complete cycles. For a 12-volt gel or Sealed AGM Battery, an average of seven years of use is completely normal.

　　Sealed Deep Cycle Battery is also our product, welcome to consult and purchase.