United States · Battery knowledge hub
Many newer Ford models use a battery monitoring system and, on start-stop variants, AGM batteries. After replacement, the monitoring system should be reset so it learns the new battery.
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Start-stop and power-management features rely on the battery monitoring sensor on the negative terminal.
Electrolyte is held in glass-fibre mats between the plates. AGM batteries tolerate frequent deep cycling and high electrical loads, which is why they are fitted to many premium and start-stop vehicles with brake-energy recovery.
Replacement rule: A vehicle designed for AGM should be fitted with AGM. A flooded or EFB battery in its place is likely to wear out quickly and may trigger charging-system faults.
Read the AGM guide →A strengthened version of the conventional flooded battery with improved cycling durability. EFB is commonly specified for entry-level start-stop systems that do not need the full capability of AGM.
Replacement rule: EFB can often replace a conventional battery, and AGM can often replace EFB — but EFB should not replace AGM. The vehicle may also need to be told which type is fitted.
Read the EFB guide →The traditional wet-cell starter battery. Robust and cost-effective for vehicles without start-stop, but heat accelerates internal corrosion and water loss, which shortens life in a Dubai summer.
Replacement rule: Not suitable where the manufacturer specifies EFB or AGM. Upgrading a conventional application to EFB or AGM is often possible but should be confirmed for the specific vehicle.
Read the Conventional guide →Generation-level information from our vehicle database. Where a field says “confirm”, it varies by engine or trim and is checked against your vehicle.
The sensor on the negative terminal must be refitted correctly; the earth cable should not bypass it.
Ford start-stop models commonly specify AGM.
The battery monitoring system may need resetting, or the new battery may need time to reach a sufficient charge level.
Tell us the model and year, and send a photo of the current battery if you can. We confirm the right battery before anyone sets off.
Daily, including late evenings. Out-of-hours requests are answered as technician availability allows.