Battery

Replace the battery on a 2005 Dodge Viper, including removal of the old battery, cleaning terminals, and installation of a new battery with proper torque specifications.

Warnings

Tools required

Parts

• Battery (Group 65, 850+ CCA recommended) × 1 — Use OEM specification or equivalent
• Battery terminal protector pads (felt) × 2 — Generic

Preparation

1. Park vehicle on level surface and ensure ignition is OFF with key removed
2. Open hood and locate battery in engine compartment (right side near firewall)
3. Allow engine to cool if recently operated
4. Ensure all electrical accessories are turned off
5. Have radio security code available if applicable

Procedure

1. 1

   Disconnect negative battery cable
   Using a 10mm socket, loosen the bolt on the negative (-) battery terminal clamp. Remove the cable from the negative post and secure it away from the battery to prevent accidental contact. The negative terminal is marked with a minus (-) symbol and typically has a black cable.
2. 2

   Disconnect positive battery cable
   Using a 10mm socket, loosen the bolt on the positive (+) battery terminal clamp. Remove the cable from the positive post and position it away from the battery. The positive terminal is marked with a plus (+) symbol and typically has a red cable or red cover.
3. 3

   Remove battery hold-down
   Locate the battery hold-down bracket at the base of the battery. Using a 13mm socket with extension, remove the hold-down bolt securing the battery bracket. Lift and remove the hold-down bracket from the battery.
4. 4

   Remove battery from tray
   Carefully lift the battery straight up and out of the battery tray. Batteries are heavy (40-50 lbs typical) - use proper lifting technique and keep battery level to prevent acid spillage. Set the old battery aside in a safe location away from the work area.
   ⚠Battery weighs approximately 40-50 pounds. Use proper lifting technique to avoid back injury.
5. 5

   Inspect and clean battery tray
   Inspect the battery tray for corrosion, cracks, or damage. Clean any corrosion from the tray using a wire brush and baking soda/water solution if needed. Rinse with clean water and dry thoroughly. Inspect battery cables and terminals for damage or excessive corrosion.
6. 6

   Clean battery cable terminals
   Using a battery terminal cleaner or wire brush, clean the inside of both battery cable clamps until bare metal is visible. Remove all corrosion and oxidation to ensure good electrical contact. Wipe clean with a shop towel.
7. 7

   Install new battery
   Place the new battery into the battery tray, ensuring it is oriented correctly so each terminal matches the corresponding cable position as noted during removal. Verify the battery sits flush in the tray and is properly positioned.
8. 8

   Install battery hold-down
   Position the hold-down bracket over the battery base. Insert and hand-tighten the hold-down bolt. Using a torque wrench and 13mm socket, tighten the hold-down bolt to specification. The battery should be secure but not deformed by excessive clamping force.
   Torque spec

   Battery Hold-Down Bolt8 Nm (6 lb-ft)
9. 9

   Connect positive battery cable
   Place the positive (+) cable clamp onto the positive battery post. Ensure the clamp is seated fully on the post. Using a torque wrench and 10mm socket, tighten the positive terminal bolt to specification. Do not overtighten - excessive torque can crack the terminal post.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)
10. 10

    Connect negative battery cable
    Place the negative (-) cable clamp onto the negative battery post. Ensure the clamp is seated fully on the post. Using a torque wrench and 10mm socket, tighten the negative terminal bolt to specification. Do not overtighten.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)
11. 11

    Apply terminal protection
    Apply battery terminal protector spray or install felt terminal protector pads over both terminals to prevent future corrosion. This step is optional but recommended for extended battery life and reliable connections.

Reassembly

1. Ensure both battery cables are securely tightened to proper torque specifications
2. Verify battery hold-down bracket is properly secured and battery does not move when pushed
3. Check that no tools or materials have been left in engine compartment

Verification

• Turn ignition to ON position (do not start) and verify instrument cluster lights illuminate normally
• Start the engine and verify it cranks and starts normally without hesitation
• Check that alternator is charging - voltmeter should read 13.5-14.5 volts with engine running
• Test electrical accessories (lights, radio, windows, etc.) to ensure proper operation
• Reset clock and radio presets as needed
• Verify no warning lights remain illuminated on instrument cluster after startup
• Inspect battery terminals for any signs of arcing or poor connection

Related trouble codes on this vehicle

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