Dead battery?

Own a 2002 Chetak? Battery keep dying super duper fast? My wife owns a 2002 Butter Yellow Bajaj Chetak and I went camping with a buddy and used her scoot as I loaned mine to my friend. From riding just one full day the battery was dead. This bothered me, because I was scooter camping for the weekend and had to run the bike without the batt/front light on dark forest rodes. Not the safest way to ride. I went out and bought another. And it happened again on our second scooter camping weekend. It killed my brand new battery too. They don't recover well from a full discharge like a car batt does. I eventually found the fix, replace the $110 rectifier. Luckily it was under warranty as a "recall."

When I removed the old rectifier I could see it was melted a little. No wonder it was dead. The rectifier sits behind the battery on the opposite side of the battery compartment -- closest to the frame.