Jeep 2007 Liberty Owner's Manual page 328

328 MAINTAINING YOUR VEHICLE
To determine the battery charge, check the battery test
indicator (if equipped) on top of the battery. Refer to the
illustration.
CAUTION!
• It is essential when replacing the cables on the
battery that the positive cable is attached to the
positive post and the negative cable is attached to
the negative post. Battery posts are marked (+)
positive and negative (-) and identified on the
battery case.
• If a "fast charger" is used while battery is in the
vehicle, disconnect both vehicle battery cables
before connecting the charger to battery. Do not
use a "fast charger" to provide starting voltage.