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Replacing Batteries
First, be sure to follow these important safety tips:
Read your auto manual on replacing your battery.
Put on protective eye wear, rubber gloves and work clothes and remove all jewelry.
Put the car in park (automatic) or in gear (standard shift) and engage the emergency brake.
Don't allow smoking, open flames or sparks near the battery.
Avoid connecting positive and negative battery cables in reverse polarity.
Never strike a battery terminal or cable end with a hammer or wrench to loosen the connection. This may loosen the terminal and destroy the battery.

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How do I know when to replace my battery? You might need to replace your battery if:
  • your starter motor is experiencing slow or interrupted turnover.

  • your instrument panel battery light indicates battery discharge for extended periods after the engine is running.

  • your battery seems to lose power quickly in cold or extended starts.

  • your headlights dim at idle.

Any of these warning signals may also indicate a problem with the electrical system in your vehicle and not necessarily a battery failure. A battery that is about to fail will often give little or no warning. If you suspect that your battery is failing, test it yourself or have it tested or replaced as soon as possible by your local Interstate Batteries dealer.

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How do I replace my battery?

  1. Visually inspect the battery connections and note the location of the positive (+) and negative (-) terminals.

  2. Disconnect the negative (-) cable from the battery with a wrench.

  3. Disconnect the positive (+) cable.

  4. Remove the hold-down clamp which holds the battery in place.

  5. Lift out the battery.

  6. Inspect the battery tray for corrosion or damage. Clean or replace the tray and attaching parts as needed.

  7. Inspect the battery cables for damage. Clean or replace the cables as needed to ensure a good connection. For replacing battery cables, contact your local Interstate Batteries dealer at 1.928.453.7511.

  8. Install your new Interstate battery and secure it with the hold-down. Be sure the new battery is the same voltage and group size as your original equipment battery. Check to ensure that it has at least the same cold-cranking amp (CCA) and reserve capacity (RC) ratings as specified by the original equipment manufacturer.

  9. Attach the positive (+) cable to the positive (+) terminal.

  10. Attach the negative (-) cable to the negative (-) terminal. Be careful not to over tighten.