Fig. 151: Identifying AGM Battery
Introduction
In September 2002 so-called VRLA batteries, better known as AGM batteries ,
were introduced.
(VRLA stands for Valve Regulated Lead Acid, i.e. lead acid battery with pressure
relief valve; AGM stands for
A bsorbent G lass M at, i.e. absorbent glass f
General information
Electronic control devices are installed in the vehicle.
Electronic control units process data they
receive from vehicle sensors, self-generate or
exchange with each other. Some control units
are necessary for the vehicle to function safely or
provide assistance during driving,