alternator JEEP WRANGLER UNLIMITED 2013 Owners Manual

CAUTION!• Many accessories that can be plugged in draw
power from the vehicle’s battery, even when not in
use (i.e., mobile phones, etc.). Eventually, if
plugged in long enough, the vehicle’s battery will
discharge sufficiently to degrade battery life and/or
prevent the engine from starting.
• Accessories that draw higher power (i.e., coolers,
vacuum cleaners, lights, etc.), will degrade the
battery even more quickly. Only use these intermit-
tently and with greater caution. (Continued) CAUTION! (Continued)• After the use of high-power draw accessories, or
long periods of the vehicle not being started (with
accessories still plugged in), the vehicle must be
driven a sufficient length of time to allow the
alternator to recharge the vehicle’s battery.
• Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or acces-
sory bracket from the plug.
3 UNDERSTANDING THE FEATURES OF YOUR VEHICLE 185

JUMP-STARTING PROCEDURES
If your vehicle has a discharged battery it can be jump-
started using a set of jumper cables and a battery in
another vehicle or by using a portable battery booster
pack. Jump-starting can be dangerous if done improperly
so please follow the procedures in this section carefully.
NOTE: When using a portable battery booster pack
follow the manufacturer ’s operating instructions and
precautions. CAUTION!Do not use a portable battery booster pack or any
other booster source with a system voltage greater
than 12 Volts or damage to the battery, starter motor,
alternator or electrical system may occur.
WARNING!Do not attempt jump-starting if the battery is frozen.
It could rupture or explode and cause personal injury.548 WHAT TO DO IN EMERGENCIES