Citazione:What is an AGM battery? AGM is an abbreviation for absorbed glass mat. The motorcycle industry refers to this type of battery as a gel battery. In this design, the acid is completely absorbed into glass mat separators which are sandwiched between the lead plates. It's a totally sealed and maintenance free design. There are no discharge tubes or fillers caps, which eliminates the need to maintain water levels and offers no concern about acid leaks on valuable parts and accessories.: Rolleyes :
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