Car battery what size cable ?
18 November 2011, 11:00 PM
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Car battery what size cable ?
Looking at purchasing some battery cable to install isolator switch do i need 25 awg at 170amp advice please.
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19 November 2011, 09:26 AM
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The battery on my car has coldstart performance of 510 amps. I dont think the starter would pull that much but you to be sure you have heavy enough cable.
19 November 2011, 10:10 AM
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25 square mm is ample for battery cable. No need for anything bigger. The starter may pull 300 amps when initially flicked but will draw nowhere near that whilst actually spinning the engine.
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