I have a question about the wire gauge used to connect the batteries to the ESC. The batteries (2) I am using come with 12 gauge power leads and the ESC also has 12 gauge power leads. I want to connect the batteries in series and put an arming switch in between the batteries and the ESC so I purchased the MPI Arming switch and MPI series cable, both of these come with 14 guage wiring. Since both the batteries and the ESC have 12 guage wires, is it going to cause problems if I use 14 guage wire between them? My concern is having the 14 guage wire overheat.

Batteries are Zippy Flightmax 5000mAh 6S1P 20C - two connected in series for 12S1P
ESC is Pentium 100A-HV ESC
Motor is HXT 80-85-A 250Kv Brushless Outrunning
Prop Mezjlik 22x10 3-blade hollow cardon fiber