Battery Cable Gauge

[77vetter]

I just bought a Blue Sea E-Series disconnect system for my 2005 200 Sport 4.3MPI and need to purchase the negative cable for the connection back to the battery. I need a 2-3' length of cable but not sure what gauge the wire needs to be, 2/4/6 seems to be the options for marine cables?

https://www.batterycablesusa.com/battery-cables-marine-grade-tinned

Thanks!

 

[techmitch]

I just bought a Blue Sea E-Series disconnect system for my 2005 200 Sport 4.3MPI and need to purchase the negative cable for the connection back to the battery. I need a 2-3' length of cable but not sure what gauge the wire needs to be, 2/4/6 seems to be the options for marine cables?

https://www.batterycablesusa.com/battery-cables-marine-grade-tinned

Thanks!

The thicker, the better.

 

[Henry Boyd]

The thicker, the better.

What he said. Keep in mind, the thicker it is, the harder it will be to get it around corners, or to bend properly to avoid mechanical stress on the terminals.

 

[scoflaw]

Cables get a lot thicker than that. You want marine grade tinned wire, and that stuff is very flexible. #2 should be fine with that length.

 

[pyro]

Match the existing gauge going to your batteries. There website is a little confusing. I've actually ordered from them multiple times. They are great heavy duty well made cables. They are extremely flexible compared to the cables SeaRay uses (Pacer?) which you basically need a pipe bender to bend!

I think they actually have 3 types of cables. I ordered this "Extreme" dual jacket cable. Examples all for 4/0 cables.
https://www.batterycablesusa.com/0000-gauge-battery-cable-with-ends-4-0-awg
They claim it is ABYC and USCG Approved.

The second type they offer is:
https://www.batterycablesusa.com/0000-gauge-awg-UL-battery-cable-with-ends
I've ordered this in the past, and it may be a little more flexible, but even the 'extreme' is very very flexible compared to OEM.

The third type is the ones you picked which for some reason are categorized as "marine cables".

There website is not great at differentiating between them. Maybe worth a call to them.