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<blockquote data-quote="Thnking" data-source="post: 2440008" data-attributes="member: 571105">Larger batteries won’t help with voltage drops until they are able to discharge significantly into the electrical system, I wouldn’t include them in a “Big 3”.&nbsp; Your alternator outputs current at a potential of around 14.2V.&nbsp; The battery isn’t discharging into the circuit significantly until the voltage drops low enough for the potential to cause a proportional chemical reaction.&nbsp; So really the battery isn’t helping the system until the voltage drops low enough, and it’s parasitic to the system at all other times when it’s not discharging.Let’s get that out of the way.Increasing wire size decreases resistance, which means less opposition to current – less voltage drop.&nbsp; Also your alternator and battery discharge rate is governed by the resistance of the wiring, ground points, etc (ie circuit resistance).&nbsp; So increasing the wire sizes, increases discharge rates of the sources.</blockquote>

[QUOTE="Thnking, post: 2440008, member: 571105"] Larger batteries won’t help with voltage drops until they are able to discharge significantly into the electrical system, I wouldn’t include them in a “Big 3”. Your alternator outputs current at a potential of around 14.2V. The battery isn’t discharging into the circuit significantly until the voltage drops low enough for the potential to cause a proportional chemical reaction. So really the battery isn’t helping the system until the voltage drops low enough, and it’s parasitic to the system at all other times when it’s not discharging. Let’s get that out of the way. Increasing wire size decreases resistance, which means less opposition to current – less voltage drop. Also your alternator and battery discharge rate is governed by the resistance of the wiring, ground points, etc (ie circuit resistance). So increasing the wire sizes, increases discharge rates of the sources. [/QUOTE]

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