Volkswagen Golf Service & Repair Manual: Absorbent glass mat battery

Volkswagen Golf Service & Repair Manual / Electrical system, general information / Starter- current supply- CC / Battery / Absorbent glass mat battery

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.

Battery with »enhanced« colour indicator

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