Ground

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bizzy818

Copper - Posts: 60

Joined: February 26, 2003

Location: United States

Posted: March 02, 2003 at 6:25 PM / IP Logged

Why do they say its not good to give ground to sometihng directly from the battery? Why does the battery has 2 wires going from ground one goes to a bolt and the other one to the alternator i guess. thnx

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: March 02, 2003 at 8:05 PM / IP Logged

When current flows through any device / wire with resistance, there will be a voltage drop from one end of the wire to the other. So you want the shortest length possible. The rule of thumb is to keep the ground under 18 inches.

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: March 02, 2003 at 8:09 PM / IP Logged

Also in a lot of high end charging system upgrades for car audio. The ground goes directly from the alternator to the chassis then to the battery.

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Ground

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