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Volkswagen Golf Mk7 Service & Repair Manual: Absorbent glass mat battery

The AGM battery is a maintenance-free lead-acid design with electrolyte contained in a microscopic glass mat, sealed with no colour indicator — used in certain Volkswagen Golf Mk7 configurations.

Maintenance-free battery with a contained electrolyte and no colour indicator
Lead-acid battery where the electrolyte is contained within a microscopic glass mat (AGM). The battery is sealed and fitted with valves.
AGM is the abbreviation for absorbent glass mat.
Due to containment of the electrolyte, this type of battery cannot have a colour indicator. Absorbent glass mat batteries are identified by the abbreviation AGM on the battery.
  Note
Always replace an absorbent glass mat battery with another absorbent glass mat battery.

    Questions & answers

    Absorbent glass mat battery — Volkswagen Golf Mk7

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