06 Nissan maxima No throttle response Limp mode PROBLEM SOLVED! Battery or alternator. Voltage issue

My brother come over and when he tried to leave car was having all kinds of weird symptoms. Blinking dash lights, every once in a while. When we went to turn it over it wouldn't start. It was to inconstitant to think battery issues. Also when we jump started it. It seem to run fine. Then we try to put it in gear. It would only travel at idle speed. Absolutely zero response from the throttle (in gear). Could still get response from throttle in neutral. I thought it was pretty odd. So I started checking fuses and fuilds (the basics). I had left the jumper cables on while in car was turned over. while my brother Kenny was in the driver seat. Well he went to show my brother Michael that the car wouldn't accelerate. Well it worked. Straight ripped the jumper cables off my car and his car immediately stopped wanting to accelerate. Bazaar symptoms if you asking me. Simple fix! Check your battery. Like, subscribe, and share for more