Yesterday, I left my Honda Amaze in the parking lot with parking lights ON. When I came back after 6 hours, I saw that scary dying blink and cursed myself because, I knew that it would be hard to start the engine. Battery went almost completely dead !
It was midnight, thought of leaving my car and return back the next day with some solution. Just then, luckily, two guys from the nearby coffee shop which they had just closed, were passing by. They came to my rescue and pushed the car, the engine sprang to life. However I was worried what if the car stopped in the middle of 3 mile journey. I searched online and followed this post in the forum.
I drove in total 6 miles, then parked my car below my apartment with the engine ON, headlights, radio and the AC OFF. Revved it up on neutral at 2000 rpm for 20 mins. And praying that it must start now after I shutdown. And boom.. Thats exactly what happened. I could then start it normally. I tried twice and both the time, battery worked normally.
So to conclude, if you have a new gen car, and if your battery goes dead due to overdraining, then you must try the technique.
Thanks mighty V8 engine for the post.