Brand new battery, only lasted about 2 hrs, and was dead. Tried jumping to no effect, would start with jump, but died when disconnected from jumper cables, even after left on the jumper cables for over an hour.
If you own a Fiat/Chrysler vehicle, you should be aware of the TIPM.
Because when these start acting up, it can be like owning the vehicle from hell.
Sounds like your alternator is shot.