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Is it bad to have a second battery in the trunk of my car to power my amp and subs?

i was just wondering if it was safe or not to buy a second battery for my amp and subwoofers and place it into the trunk of my car, and if it wasnt bad, what kind of battery and how would i power it/ charge it?

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Using a capacitor is better than having another battery in your trunk. Battery need to be recharge to be able to use it for a long time. Bring your car to an auto mechanic is better. The will tell you what is better.

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It would die. What you need is another alternator and or just use a truck stereo capacitor

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You would need a gel cell battery
$189 but I suggest a cap like the others have $39-$200

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