Dodge 2013 Challenger - Manual (Page 428)

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 is stored under an access cover in the trunk.
Remote battery posts are located on the right side of the
engine compartment for jump-starting.
Remote Battery Posts
1 — Remote Positive (+) Post
2 — Remote Negative (-) Post
426 WHAT TO DO IN EMERGENCIES