Replacing the battery on a Harley-Davidson Touring bike is a straightforward task that can save time and money. If your bike cranks slowly or the lights dim at idle, it’s a sign to test the battery and possibly replace it. A new battery is especially important if you’re planning a long ride and your current one is over three years old. Here’s a step-by-step guide to help you get the job done.
Materials Needed
To complete this job, you’ll need:
– 7/16″ socket and ratchet
– Phillips head screwdriver
– T40 Torx bit and driver
Step 1 – Remove the Saddlebag
If your bike has a frame-mounted seat strap, start by removing one saddlebag to access the battery area. Open the saddlebag lid, unscrew the thumb screws inside the bag, and lift it off the bike. Set it aside carefully.
Step 2 – Remove the Seat Strap
Use a 7/16″ socket or wrench to unbolt one side of the seat strap. Once the bolt is removed, flip the strap over to allow access to the seat.
Step 3 – Remove the Seat
Remove the Phillips head or thumb screw securing the seat to the rear fender. If your bike has a Tour Pack trunk, open the lid to access the screw. Lift the rear of the seat slightly and slide it backward to remove.
Step 4 – Remove the Engine Computer and Security System
With the seat removed, locate the plastic cover over the battery. This cover holds the engine control module (ECM) and the security system antenna (if applicable). Slide the security system out of its clip and unclip the ECM from its plastic holders. If a T40 Torx bolt is present, remove it to access the battery.
Step 5 – Remove the Battery
Using a Phillips head screwdriver, disconnect the negative (black) terminal first, followed by the positive (red) terminal. Pull the battery out using the installed strap. Be cautious—it’s heavier than it appears.
Step 6 – Install the New Battery
Position the new battery and ensure the strap is placed correctly for future removal. Connect the positive terminal first, then the negative. Reinstall the ECM, security system, and Torx bolt.
Step 7 – Reassemble the Seat and Saddlebag
Reinstall the seat by sliding the front into the guide and securing the rear with the screw. Reattach the seat strap with the 7/16″ bolt and replace the saddlebag, ensuring it’s securely fastened.
By following these steps, you’ll have your Harley-Davidson ready to roll with a new battery, avoiding potential issues and keeping your bike running smoothly.
