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Parts for your 2004 Holden Commodore-Batteries

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OEX Relay Base Suits 4 or 5 Pin Relays - ACX1997BL
OEX

OEX Relay Base Suits 4 or 5 Pin Relays - ACX1997BL

$10
Fitment Notes:
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Narva Electronic LED Flasher 12V 3 Pin - 68245BL

Narva Electronic LED Flasher 12V 3 Pin - 68245BL

$63
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Explore 4WD & Adventure

OEX Starter Motor Slave Solenoid 12V - ACX3342
OEX

OEX Starter Motor Slave Solenoid 12V - ACX3342

$63
Fitment Notes:
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Narva 12V Relay 5 Pin 30/40A With Resistor - 68044BL

Narva 12V Relay 5 Pin 30/40A With Resistor - 68044BL

$36
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OEX Mini Relay 12V Normally Open 30A - ACX1990
OEX

OEX Mini Relay 12V Normally Open 30A - ACX1990

$46
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Narva Relay - Unfused High Capacity - 72386BL

Narva Relay - Unfused High Capacity - 72386BL

$20
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OEX Battery Relay 12V 100A - ACX2030
OEX

OEX Battery Relay 12V 100A - ACX2030

$90
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Hella Battery Relay 12V Normally Open 180A Peak - 3061

Hella Battery Relay 12V Normally Open 180A Peak - 3061

$80
Fitment Notes:
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OEX Flasher Relay, 3 Pin 12V - ACX1954BL
OEX

OEX Flasher Relay, 3 Pin 12V - ACX1954BL

$22
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OEX Glow Plug Timer 12V Universal - ACX4870
OEX

OEX Glow Plug Timer 12V Universal - ACX4870

$153
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Narva 12V HD Relay 200A - 68022

Narva 12V HD Relay 200A - 68022

$136
Fitment Notes:
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Narva 12V Relay 4 Pin 40A - 68000BL

Narva 12V Relay 4 Pin 40A - 68000BL

$31
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OEX Turbo Timer 12V Universal - ACX4851
OEX

OEX Turbo Timer 12V Universal - ACX4851

$194
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Capital Glow Plug Timer 12/24V Afterglow - GPT1224

Capital Glow Plug Timer 12/24V Afterglow - GPT1224

$205
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Narva 12v Relay 4 Pin 20A - 68062BL

Narva 12v Relay 4 Pin 20A - 68062BL

$32
Fitment Notes:
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OEX Continuous Duty Solenoid 12V 80A Normally Open - ACX3302
OEX

OEX Continuous Duty Solenoid 12V 80A Normally Open - ACX3302

$97
Fitment Notes:
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Narva 12V Relay 5 Pin 30A - 68024BL

Narva 12V Relay 5 Pin 30A - 68024BL

$32
Fitment Notes:
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Narva 12V Relay 4 Pin 40A - 68004BL

Narva 12V Relay 4 Pin 40A - 68004BL

$31
Fitment Notes:
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Narva Voltage Sensitive Relay 12V/140A - 61092BL

Narva Voltage Sensitive Relay 12V/140A - 61092BL

$148
Fitment Notes:
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OEX Headlight Relay 12V 30A - ACX2034
OEX

OEX Headlight Relay 12V 30A - ACX2034

$139
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Showing 1 - 39 of 187 products

Maintaining and Replacing the Battery in Your 2004 Holden Commodore

If you're driving a 2004 Holden Commodore, it's important to keep an eye on its battery to ensure your vehicle runs smoothly. The trusty Commodore, like most modern vehicles, relies on a battery to power all its electrical components, from starting the engine to powering the lights and other accessories. Ensuring that your battery is in good condition is key to avoiding any unwanted surprises when you really need your car to perform.

Batteries have a finite lifespan, typically around three to five years, so maintaining or replacing it when necessary is part of the routine care your Commodore deserves. Here's a guide to help you navigate battery maintenance and replacement.

  • Checking the Battery Health: A good practice is to periodically check your battery's health. A voltmeter can help you determine if your battery is providing an adequate charge. A fully charged car battery should read around 12.6 volts or above with the engine off and over 14 volts when the engine is running. If the readings fall below these numbers, it might be time to replace the battery.
  • Visual Inspection: Regularly inspect the battery for any signs of corrosion or damage. Look for white, ashy substances around the terminals, which indicate corrosion. Corrosion can impede the battery's performance, so keeping the terminals clean is essential. Use a mixture of baking soda and water to clean corrosion off the terminals, and ensure they are securely fastened.
  • Signs of a Weak Battery: Be attentive to the signs that your battery might be weakening. If you notice your engine cranking more slowly than usual, or your lights dimming when idling but becoming brighter when you rev the engine, these could be indications that the battery is not holding a charge as it should.
  • Routine Maintenance: Ensuring that your battery is part of your regular vehicle maintenance is vital. When you take your car in for service, ask your mechanic to check the battery's condition. This way, you can catch any potential issues early and avoid trouble later.

If you've determined that your battery needs replacing, here's a basic guide on how to go about it:

  1. Choosing the Right Battery: Ensure you choose the correct battery size and type for your 2004 Holden Commodore. Refer to the owner's manual, or consult a professional to make sure you get the right one.
  2. Gather Necessary Tools: You'll need a wrench set, a wire brush or battery terminal cleaner, and a pair of gloves to protect your hands during the process.
  3. Disconnect the Old Battery: Start with turning off the engine and ensure all car electrical components are off. Disconnect the negative terminal first, followed by the positive terminal. This prevents any short circuits.
  4. Remove the Old Battery: Carefully lift out the old battery. Batteries can be heavy, so using both hands is advised. Be sure to dispose of it properly, most automotive stores offer recycling for used batteries.
  5. Install the New Battery: Place the new battery in the tray and secure it with the clamp. Connect the positive terminal first, followed by the negative. Ensure the connections are tight and free of corrosion.
  6. Test the Installation: Once the new battery is in place, start the engine to ensure it's operating correctly. If everything powers up as expected, you're good to go.

Regular battery checks should be part of your car care routine, along with other essential upkeep tasks. Regular maintenance can help extend the life of your battery and ensure your Holden Commodore remains reliable through every journey. Adopting a proactive approach not only prevents unforeseen car troubles but also saves you time and money in the long run. Drive with peace of mind knowing that your battery, and by extension your car, is in great shape. Happy motoring with your 2004 Holden Commodore!