Hello all, Wondering about the practical vs the theoretical here. Am upgrading the DC system, adding a Group 24 dedicated start battery, and connecting the two group 31 in parallel to double the capacity of what will become the dedicated house bank. Am adding a blue sea switch and ACR. FYI - an ACR is a device that upon starting the engine essentially 'chooses' to top up the start battery fully before allowing the the house bank to be charged. Anyway, the manual states that the acr should be connected as close as possible to the battery (to prevent voltage drop from compromising its function to any degree) and both of its leads fused based on the wire gauge. All makes sense, especially when the batteries are located At a distance from the switch or ACR. however.... The simplest installation is directly adjacent to the switch, not the battery. The leads to the ACR would be very short and well protected - less than a foot. (The battery cables themselves are not fused!) In the 33-2, the distance to battery is still very short - less than eight feet of cable for sure.
In this situation, I can only see an infinitesimal difference in voltage drop by locating the ACR a few feet closer to the battery, really, no meaningful difference. With a lead length measured in inches the positive wires to the ACR probably do not need to be fused. (the ground wire IS fused, protecting against failure of the device itself.). Has anyone got any experience with this that would tell me otherwise? Thanks! Dave Syer 33-2 _______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
