Normally when you replace the battery you disconnnect the computer and it should clear any codes stored. (The codes are what turn the check engine light on.) More than likely the cause of the light coming on is due to a vacuum line that was pulled loose when installing the battery. I had the same thing happen and it was caused by a vacuum line going to the cruise control. As soon as the line was reconnnected the light went off. You may want to have the codes checked by a reliable source such as Car Quest or any good mechanic if you can not find the problem. Autozone does the code check for free!
Yes, it's possible, but unlikely
Check for a weak or dead battery Check for loose or corroded battery cables Could be a seized engine Could be a bad starter or bad starter solenoid
It could be the alternator or an electrical issue
the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.
The starter could be bad. Or the battery. The starter could be bad. Or the battery.
The battery has a dead cell or short and needs replacing.
take it to a shop
More than likely the battery has a dead cell and needs replacing. It can also be something is on pulling power from the battery.
could be an excessive parasytic load due to either a hidden accessoryShould not exceed .07 ampsbeing left on i.e. trunk light, glove box lightCould be a bad voltage regulator - not opening on shut down Could be a bad alternator not charging battery properlyCheck with a voltmeter - should be around 12.8 without engine running and 13.8-14.2 with engine running
It could mean weak batteries. If it gets better on starting and rev the engine, it is the battery otherwise it could be your alternator.
It should restart normally after replacing the battery. If not, it could be a security mode the car has entered. You should question a ford dealership about it.