The 2015 and 2016 model F150s
The 2015 and 2016 model F150s; only the one's with the 2.7-liter Ecoboost engine, come standard with an auto start/stop system that can be manually overridden each time one starts the truck. It uses a regular lead-acid battery (not a hybrid or a starter generator or anything like that). It has something in the software that keeps the transmission in gear when it shuts off for quicker moving upon restart. The only negatives I've found are: Often, I'm just stopping and going and don't really want the engine to shut off, but if I don't remember to override, it will shut off. Number 2, I love daytime running light, but I hate running lights left on with the engine off. My wife's Saturn car and my truck both do this upon engine shut off, and I'll often manually turn off the lights and then back to auto upon restart, but that's a hassle. And thirdly, sometimes, if I'm at a light or stop sign and ready to make an immediate left turn, when the engine first starts there is a delay in the power steering. Not for long, but long enough to give one an eerie feeling.
For 2017, F150 will have auto start/stop on the new 3.5-liter EB and the 2.7-liter EB and maybe other offerings as well, but I'm not sure.