Ram Trucks 2013 Chassis Cab - Owner Manual - Manual (Page 384)

WARNING!
Do not attempt jump-starting if the battery is frozen.
It could rupture or explode and cause personal injury.
Preparations For Jump-Start
The battery in your vehicle is located in the front of the
engine compartment, behind the left headlight assembly.
NOTE: The positive battery post is covered with a
protective cap. Lift up on the cap to gain access to the
positive battery post.
Positive Battery Post
382 WHAT TO DO IN EMERGENCIES