Grounding

[Gutta Trash]

When installing extra battery in the back am I right in thinking that after running a power from battery one to battery two I will actually need to ground battery 2 somewhere closer to the back then running a ground from battery 1? And also I have never used a second battery so I was wondering when using a second battery is it better to ground amps to the battery or do like I would without a second battery and ground to the chassis?

[Jimmydb]

Ground your amps and your second battery to the chassis, there's alot noise in your battery's negative terminal that can be avoided.

This is my understanding, we'll see if I get a +1 from someone else, but I'm pretty sure that's true.

[raytard]

i've always grounded amps to the back batt, and made sure the back batt has a good ground.

in my current setup, i just have a ground busbar with all my grounds attatched to it (batt, amps, chassis) and a + bus bar with all my +'s attatched to it (2 charging lines from front, batt, amps)

usually people ground the back batt, and ground the amp to the batt, just so the back batt is powering the system and the total resistance is lower and therefore, higher voltage is possible.