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Wiring, Electrical & Installation
Double 1/0 CCA vs Single 2/0 CCA vs Single 1/0 OFC
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<blockquote data-quote="2023 LTZ" data-source="post: 8843135" data-attributes="member: 686684"><p>I’ll comment on a couple areas of your post. In the case you choose a single run and really either way you’ll want a fuse after you distribution block/s which are essentially a step down to fit your amps. This is if they don’t have onboard fuses already.</p><p>Pertaining to wire size, I am unaware of a benefit from having two runs. If your system was 10x bigger and you ran huge wire, the distribution block still reduces it down to fit your amp/s. The fused distribution block is their protection. If you had a 1000a fuse under the hood bc of your huge alternator this fuse allows the power back to be distributed. Extra or overhead power is dead ended or not made by the alternator bc demand isn’t there.</p><p>They make larger than 300 amp fuses.</p><p></p><p>Also on the wire sizing, I chose 4-0 from alternator to battery and 0ga after that. My idea was this way I have room for the alternator to also run vehicle accessories and the system wide open.</p><p></p><p>I posed a question several days ago regarding the second battery and it must not have been exciting or controversial enough for the majority to respond yet I’ll share this w you. Which ever wire you choose, have it go to your second battery then a separate run off the second battery to the distribution.</p></blockquote><p></p>
[QUOTE="2023 LTZ, post: 8843135, member: 686684"] I’ll comment on a couple areas of your post. In the case you choose a single run and really either way you’ll want a fuse after you distribution block/s which are essentially a step down to fit your amps. This is if they don’t have onboard fuses already. Pertaining to wire size, I am unaware of a benefit from having two runs. If your system was 10x bigger and you ran huge wire, the distribution block still reduces it down to fit your amp/s. The fused distribution block is their protection. If you had a 1000a fuse under the hood bc of your huge alternator this fuse allows the power back to be distributed. Extra or overhead power is dead ended or not made by the alternator bc demand isn’t there. They make larger than 300 amp fuses. Also on the wire sizing, I chose 4-0 from alternator to battery and 0ga after that. My idea was this way I have room for the alternator to also run vehicle accessories and the system wide open. I posed a question several days ago regarding the second battery and it must not have been exciting or controversial enough for the majority to respond yet I’ll share this w you. Which ever wire you choose, have it go to your second battery then a separate run off the second battery to the distribution. [/QUOTE]
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Double 1/0 CCA vs Single 2/0 CCA vs Single 1/0 OFC
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