My 04 Nissan maxima won’t stay crunk even after a new alternator has been placed on it

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! It sounds like you've got quite the electrical gremlin on your hands! If your Maxima isn’t staying cranked even with a new alternator, and it shuts down right after removing the jumper cables, the issue might not be the alternator but rather a failing battery or a bad connection somewhere. Those flickering dash lights and highway acceleration issues hint at a possible wiring or grounding problem, which can be tricky to diagnose. Even though the dealership didn't find anything, it's worth double-checking the battery cables, grounds, and main fuse. Sometimes, a simple corroded connection can cause all sorts of headaches. It's also worth noting that I've seen numerous alternators fail right out of the box! If you need any further advice or if you'd like any help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554!