Battery going dead when not used

[psrujak]

My battery has been going dead over night with everything turned off. I took all the + terminal wires off and touched one wire at a time to the + terminal. Found the wire that goes to the lights sparked. The lights include head light, brake light and turn signal. What could be causing the lights to draw volts when not in use. The lights were installed in spring of 2018.

[BadAndy2001]

My 93 is doing something similar. I hadn’t used it in about 2 weeks and it was pretty slow and stubborn to start. It was pretty cold out, so I ran it for awhile to try to get warm and to keep the battery up. The next day, she wouldn’t crank. I checked the battery and had just shy of 12v. In the past year I have replaced the battery, starter, solenoid, voltage regulator and replaced my headlights with LEDs. When I’d press the pedal, it would make a half hearted crank, and then struggle to get back over again. If I let off the pedal, and press it again, it would sound like something grinding and occasionally squealing... but not a belt slipping, like a screeching.