Will it be enough?

[MkKin420 10+ year member]

Will this electrical setup be enough for my daily driver:

Optima yellowtop d25/75

200 amp alt

big 3 1/0

4 gauge + run to the back

only running the 1208d at 2ohms

Click to read more...

 

[smoka 10+ year member]

4 gauge seems small. Add up the fuses on your amp and the distance you are running it and the chart will give you a good idea.

                                 Length of run (in feet)
Current     0-4  4-7 7-10  10-13  13-16  16-19  19-22  22-28

  0-20A     14   12   12     10     10      8      8      8
 20-35A     12   10    8      8      6      6      6      4
 35-50A     10    8    8      6      6      4      4      4
 50-65A      8    8    6      4      4      4      4      2
 65-85A      6    6    4      4      2      2      2      0
85-105A      6    6    4      2      2      2      2      0
105-125A      4    4    4      2      2      0      0      0
125-150A      2    2    2      2      0      0      0     00

 

[thegreatestpenn 5,000+ posts]

it'll be fine, but you might as well just do an 1/0ga. run since you have it for your big3

 

[MkKin420 10+ year member]

Think some 4 gauge knu fleks would be enough? amp has an 80 amp fuse, The run is about 15 feet give or take. Trying to avoid spending another $80 bucks on 1/0 gauge, I could get 20 ft of knu fleks for $40 shipped. Anyways, you think I will be fine with just the optima, I don't plan on running it down much and want to keep it fully charged as much as possible, I play my music conservatively, no playing at lights/stopped, usually only crank the volume when I am going 30mph+.

 

[loopkiller 10+ year member]

You should be fine. 4 gauge should be fine in that setup, but it does not give you any upgrade potential. So if you add another amp, or upgrade your amp, you will need to remove the 4 gauge and upgrade to 1/0.