Flooded, EFB or AGM: matching the chemistry to a start-stop car
This is the single most expensive mistake in the UAE battery market. If your car has a start-stop system, it left the factory with either an EFB (enhanced flooded battery) or an AGM (absorbent glass mat) battery, both built to survive thousands of restart cycles per year. Fit a conventional flooded battery in its place and two things happen: the stop-start function quietly disables itself once the car's electronics detect the wrong charge behaviour, and the battery itself cooks within six to twelve months because it was never designed for constant partial-state cycling.
How do you know what you have? The label on the current battery says AGM or EFB explicitly, the owner's manual specifies it, and any vendor quoting through tamam should ask for your car's make, model and year precisely so they can price the correct chemistry rather than the cheapest one. A quote for a start-stop German saloon that comes in at the bottom of the market range is usually a flooded battery wearing an optimistic price tag.