Okay, happened once last week, drove the truck to retrieve a VW bug for a friend, used the Disco to jump the bug, then drove the bug on a car hauler and used the Disco to pull it home. Week later went out to drive the Disco and the battery was dead. Like .3vDC dead. Key opened the drivers door, used jumper cables and a spare battery and the Disco started right up. Battery voltage with truck running was 14.3vDC. Drove truck 20 minutes, then hooked up battery charger to top it off. Few hours later drove truck for 30 minutes, seemed fine.
Then, next morning, battery dead, again. Read several threads about alternator causing drains. Pulled battery and charged it, found the battery had 4 cells low on water, two of which were very low, added about 2 cups of water total. Charged the battery again, then used a thread from PT and connected an amp meter between the neg terminal and the neg batteru cable. I got a steady .6 amp drain. Removed the alt lead from the distribution box under the hood, no change, removed fuses and the only thing that changed was the middle large fuse that connects the fuse box in the cab. Went to the cab and started removing fuses and got no change on any of them. Well, I got an occassional .1 amp change but the discharge stayed about .5 to .6 amps. Removed meter and connected battery. Checked all of the doors shut, no lights on, no nothing. Locked, unloncked, started, shut off. Removed batt cable and hooked up meter again, got .1 amp which then went to about 30 miliamps as it went to sleep.
Truck sat overnight started right up. Waited two days started again. It's been 2 weeks and runs great, no problems.
I read an alternater causes a 4 amp drain that will kill a battery in a few hours, but .6 amps takes overnight. What on a D2 draws .6amps? Could it be a door actualter hanging up? SLS actuator? Whatever it was stopped, but of course could return anytime.
So, my question to the gurus, is what on D2 draws .5 to .6 amps that sticks or hangs or whatever?
Then, next morning, battery dead, again. Read several threads about alternator causing drains. Pulled battery and charged it, found the battery had 4 cells low on water, two of which were very low, added about 2 cups of water total. Charged the battery again, then used a thread from PT and connected an amp meter between the neg terminal and the neg batteru cable. I got a steady .6 amp drain. Removed the alt lead from the distribution box under the hood, no change, removed fuses and the only thing that changed was the middle large fuse that connects the fuse box in the cab. Went to the cab and started removing fuses and got no change on any of them. Well, I got an occassional .1 amp change but the discharge stayed about .5 to .6 amps. Removed meter and connected battery. Checked all of the doors shut, no lights on, no nothing. Locked, unloncked, started, shut off. Removed batt cable and hooked up meter again, got .1 amp which then went to about 30 miliamps as it went to sleep.
Truck sat overnight started right up. Waited two days started again. It's been 2 weeks and runs great, no problems.
I read an alternater causes a 4 amp drain that will kill a battery in a few hours, but .6 amps takes overnight. What on a D2 draws .6amps? Could it be a door actualter hanging up? SLS actuator? Whatever it was stopped, but of course could return anytime.
So, my question to the gurus, is what on D2 draws .5 to .6 amps that sticks or hangs or whatever?