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Good day gent

I have issue with an g30 aux battery after digging I found the g30 have 3 aux battery 1 in front and two in the trunk from my research I understand the smaller battery in the trunk for steering and suspension and the 70amp battery for car accessory so remaining the from battery its look like a battery can any one explain or fix me if I'm wrong and what battery should I replace for aux battery fault code [Image: 99bbad2924bb6a9ac0f113d64d6d5029.jpg]

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