You would go about doing this much the same way you would change the battery in a passenger car. The first step is to locate the battery, in the case of an F-150, it should be under the hood near one...
It depends on if it is a Nicad or lithium ion Battery Lithium Ion batteries are ruined if they become completely discharged. Nicad batteries can be partially brought back to full service by placing...
If you could get into the car and open the back seats theres a release inside the trunk. Some cars have pull down seats just pull it down and poull the glow in the dark handle on the trunk