Battery and Cables
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
Vehicles are equipped with a 12-volt, maintenance-free battery.
The battery is a 12V DC source connected in a negative ground system and is a voltage stabilizer for the 12V electrical system.
A generator current sensor is attached to the positive battery cable and a battery monitoring sensor is attached to the negative battery cable. Refer to: Charging System - System Operation and Component Description .