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AGM Battery

An AGM battery holds its electrolyte in glass fibre mats and withstands frequent cycling, as in start-stop cars.

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What is AGM Battery?

AGM stands for absorbent glass mat. EFB batteries are a cheaper alternative for simpler start-stop systems. AGM batteries are sealed, spill-resistant and can be mounted in the boot or under a seat. They need charging voltages within limits suited to AGM.

How it works

The mats keep the acid in place and allow faster charging.

Why it matters for your car

Replace an AGM with an AGM, and register the new battery if the car requires it. Fitting a standard flooded battery in a car designed for AGM can shorten its life and disable start-stop.

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