the the caps on the esc are'nt getting hot, i just want to increase the efficency and life span of both the esc and batterys

i have the caps and some 14gauge wire that i have put the caps into the wires but i'm going to solder the wires to caps for security, i've already watercooled/proofed my speedo so im going to solder the wires directly to the esc wires or i may just buy a new esc and start again from scratch

i am assuming to solder as close to the esc i can?? i read somewhere that some guys soldered them to the deans connectors but i use a series harness with 6mm bullets so i can change the harness for a single lead