I have a 2012 buick lacrosse 2.4l with hybrid system in it and it was parked for 3 to 4 monthes and now im having problem with the hybrid battery system in it and I will put a fully charged battery in it and drive it for a few miles then it dies help me

What is your question?

it keeps tellin me about the hybrid battery having a low charge and something about the electric power generator system. I'm a mechanic but ive never dealt with one of these before and don't understand it. like I seid before it was parked for about 3 to 4 months atleast and I will put a fully charged battery in it and it will drive fine for about 15 to 20 min then it dies but while its running it keeps tellin me about the hybrid battery having a low charge and the electric generator to. I don't remember the codes off the top head but it has to do with the hybrid battery and the electric generator for it