under bonnet 2nd battery wiring question

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The cable should run the most practicle direct route to the back of the Alternator output.



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Quote:

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Originally Posted by buzz66

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The cable should run the most practicle direct route to the back of the Alternator output.



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Please explain:confused:


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Gday All,Wonder what the safety reason is ? The battery is at the front of the car.I recon i've seen every battery set-up in our club-(25 cars) when I was looking at doing mine, and all bar a couple of cruisers they all had the cables running across in front of the Radiator.I ran mine across under the cover at the front of the engine bay and up under the ABS,has been there for about 100,000ks without a hitch.
Would think using the right size cable would be more important....
Cheers Ean

Quote:

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Originally Posted by Ean Austral

Gday All,Wonder what the safety reason is ? The battery is at the front of the car.I recon i've seen every battery set-up in our club-(25 cars) when I was looking at doing mine, and all bar a couple of cruisers they all had the cables running across in front of the Radiator.I ran mine across under the cover at the front of the engine bay and up under the ABS,has been there for about 100,000ks without a hitch.
Would think using the right size cable would be more important....
Cheers Ean

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Exactly how mine is, 120,000ks + for mine.

Baz.

I ran mine across the top of the intercooler - heavy duty cable encased in spiral split tubing. I fitted a 100Amp resettable circuit breaker on top of the main battery to isolate the cable to the second battery. The Redarc isolator is on this cable near the second battery. (I figure that if the CB on top of the main trips the redarc will isolate the second battery after a short time when it sees 0 volts from the main.)
I have another 100Amp CB for the other end near the second battery but haven't fitted it yet, bit short on space to mount it easily and need to make up a bracket.


Attachment 18785

Attachment 18789

Attachment 18791

Quote:

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Originally Posted by Ean Austral

Gday All,Wonder what the safety reason is ? The battery is at the front of the car.I recon i've seen every battery set-up in our club-(25 cars) when I was looking at doing mine, and all bar a couple of cruisers they all had the cables running across in front of the Radiator.I ran mine across under the cover at the front of the engine bay and up under the ABS,has been there for about 100,000ks without a hitch.
Would think using the right size cable would be more important....
Cheers Ean

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G'day,
Main reason that I can see is if you hade a front impact of some sort, ie. Roo strike/head on accident.
As a former road rescue volunteer my main concern would be the live cable being damaged and causeing arcing, this my lead to a fire in worst case.
The ability too acces ALL batteries for disconecting should IMHO be a factor too.
If fitted in rear how would you isolate the battery if needed?
Would you want power feeding from the rear risking seting of your SRS (airbags ect.) in the case of in accident? (Particualy during a rescue.)

Not trying to scare people but something to think about.
Same fore-thought as placing your fire extinguisher and 1st aid kit, there easy to reach to reach arn't they?

Cheers, Kyle.