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-   -   dual battery wire (http://www.wakeworld.com/forum/showthread.php?t=798610)

ryin 06-14-2013 8:59 AM

dual battery wire
I have some spare 4ga wire left over after installing my amp and I want to add a second battery & switch. could I get away with using the 4ga wire to connect to the switch or do I need heavier gauge?

bryce2320 06-14-2013 9:08 AM

Others will chime in, but I personally wouldnt run anything less than 0 gauge.

boardman74 06-14-2013 9:16 AM

1/0 is what experts recommended to me.

LaneXSPower 06-14-2013 10:00 AM

If you are using that battery to run your engine, 4ga should be fine. If using as part of a battery bank, a larger gauge would be desirable.

ryin 06-14-2013 11:18 AM

it would be used to connect a battery switch and second battery together. so I should go 1/0 ga?

LaneXSPower 06-14-2013 1:30 PM

Yes, 1/0 will be good if the battery is being used for things other than the motor. Plus, if the batteries are close to each other - you will only need 1-2 feet of 1/0.

Jmorlan 06-14-2013 6:05 PM

I am running 0awg and my batteries are in the tray next to each other, 1ft of each is certainly enough.

chpthril 06-14-2013 6:34 PM

Just some food for thought. If the the house (stereo) bank will be connected to a dual battery switch and used to start the engine on occasions, keep in mind that a typical V8 engine starter can easily draw 250A.

NickEspi 06-15-2013 7:05 AM

I'm using 4awg for switch connections and 2awg for bank grounding connection and starting bank to starter connection with no issues. It all depends on your setups draw. Blue Sea has a sizing chart for awg and fuses.

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