Quick Dual Battery Questions - 06 Tundra

SportsmanJake

Adventurer
My battery in my 2006 Tundra just died. I want to buy a battery that will work with a dual battery setup in the coming future.
I have done my research and am pretty committed on dual yellowtops.

Questions:

I can fit a 27f yellowtop in my stock location. The Aux battery location is limited to a D34 though.

Should I go ahead and get a D34 Yellowtop now, so that in the future, I will be able to rotate my main and aux batteries?
I really like the idea of having the same size aux and main battery and am leaning towards dual D34s.

Specs:

Optima Yellow D34/78
LxWxH: 10x7x7.8"
CCA: 750
AH: 55
Weight: 44

Optima Yellow D27F
LxWxH: 12.16x6.7X8.6"
CCA: 830
AH: 66
Weight: 53 lbs


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Here is also a quick high-level diagram of my planned setup.
Fuse 1 and Fuse 2 are fuse panels I plan on installing.
The "S" represents switch, and "F" is inline Fuse.
Tundra_Wiring_1.jpg

I want the interior fuse panel to be switched. What size relay and switch do I need?


Any input is much appreciated! Thanks guys!
 

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