Outer Limits 4x4 Board

The batteries are dying in my Jeep... put a new one in... and it dies.. whats going on? when i park it.. nothing seems to be still running.. I dont understand. I had the battery man test the alternator and it seems fine.

So today i charged the battery.. reinstalled it and decided to check everything with a multimeter...

results...

So... I checked the fuse boxes... heres the results (Ign OFF)

ENGINE BAY FUSE BOX:

I.O.D (Ignition Off Draw) (20A) Showing 12V
ALT PWR 2 (60a) Showing 12V
HTD Rear Window (40a) Showing 12V
Head Lamp Sys (40a) Showing 12V
Fuse Block (40a) Showing 12V
Eng Ctrl (30a) Showing 2V but drops slowly
ALT PWR 1 (60a) Showing 12V

INTERIOR FUSE BOX:

Heater Blower (30a) Showing 7V
Tail lamps (15a) Showing 7V
Heated Rear Window (30a) Showing 7V


Ok... so what should show voltage and what shouldnt? I presume the rear window heater shouldnt for starters?! and how do i correct the problem besides just removing its fuse?!

you may be right about the heater fuse, depends on whether the switch is before or after the fuse. another big culprit are car alarms, those f&*kers drain batteries real good. removed mine 2 weeks ago, no flat batteries since

this may or may not be helpful to you, but you really would be better to follow the wiring diagram to trace what is drawing current. oh, and use ammmeter rather than voltmeter


as additional info, i would suggest cleaning the battery terminals with one of those specialised tools or a simple wire brush, as well as the battery lead clamps. leads get covered in crap and new batteries normally have a coating of some type. and new batteries are not always fully charged too


sorry for essay length reply

didnt i reply in this thread already?
i remember writing a fair bit of info