The 2015 Lincoln MKZ uses a 12-volt automotive battery. In most trims, the battery is a Group 65 flooded lead-acid unit, with an AGM option if the vehicle has the Start-Stop system.
Battery basics for the MKZ
The MKZ’s electrical system runs on a standard 12-volt battery. The presence of Start-Stop, which engages the engine off and on to save fuel, typically requires an AGM (absorbed glass mat) battery to handle repeated deep cycling. If your car does not have Start-Stop, a conventional flooded 12V battery is common.
Group size and battery chemistry
Understanding the common sizes and chemistry helps you choose a correct replacement. The following points cover what to look for when shopping for a new battery:
- Group size: 65, a common size for Ford/Lincoln models of this era (sometimes listed as H6 in catalogs).
- Voltage and chemistry: 12-volt system; standard flooded lead-acid for non-Start-Stop, AGM for Start-Stop configurations.
- Cold-cranking amps (CCA): typically in the 700–800 A range for standard batteries; AGM versions may offer higher CCA for better cold starts.
- Reserve capacity (RC): generally around 100–120 minutes for a replacement battery target, with AGM variants often matching these figures or slightly higher.
- OEM vs aftermarket: Lincoln/S Ford OEM batteries are sold under the Motorcraft brand; many reputable aftermarket batteries in Group 65 are compatible if they meet or exceed OEM CCA/RC specs.
Choosing a battery that meets or exceeds the vehicle’s OEM specifications ensures reliable starting and electronic performance, especially in extreme temperatures or with additional electrical accessories.
How to identify the exact battery for your VIN
To confirm the precise battery specification for your specific MKZ, use these steps:
- Check the owner’s manual or the battery label for the group size and CCA rating.
- Inspect the current battery under the hood; the label will show group size, CCA, RC, and whether it’s flooded or AGM.
- Use your vehicle’s VIN on Lincoln’s official parts site or contact an authorized Lincoln dealer to verify the exact battery specification for your trim and options.
- When in doubt, opt for a Battery Group 65 battery with AGM if your MKZ has Start-Stop, and ensure the replacement is OEM-approved or explicitly rated for Start-Stop systems.
Having the exact specification is critical, as even small differences in group size or terminal layout can affect fitment and performance.
Maintenance and safety tips
Regular maintenance helps extend battery life and prevent unexpected failures. Keep terminals clean and tight, check for corrosion, and ensure proper charging. Avoid deep discharges and extreme heat or cold exposure when possible. If you handle a battery yourself, follow safety procedures and disconnect the negative terminal first.
Safety reminder
Car batteries contain corrosive acid and stored energy. Wear eye protection and gloves, work in a well-ventilated area, and never bridge or short the terminals. If you’re unsure, have a professional perform replacement.
Summary
The 2015 Lincoln MKZ uses a 12-volt battery, most commonly Group 65, with an AGM option if Start-Stop is equipped. To ensure a correct replacement, verify the group size, CCA, and RC on the battery label or via the vehicle VIN with Lincoln or a trusted parts supplier. If you need Start-Stop compatibility, choose an AGM-design battery rated for that system, and opt for OEM-approved or equivalent replacements that meet or exceed the original specifications.