How to Easily Remove a Stuck 9-Volt Battery from Your MXR Pedal

Updated at: 27/02/2025

MXR pedals, renowned for their robust build and impressive tone, sometimes present a minor challenge: a stubbornly stuck 9-volt battery. That satisfying snap you hear when installing a fresh battery can become a frustrating groan when it's time for a replacement. We've all been there, wrestling with the battery compartment, applying excessive force (and maybe even a few choice words!), only to risk damaging the delicate internal components of our prized effect pedal. Fortunately, removing a stuck 9-volt battery from your MXR pedal doesn't have to be a Herculean task.

This seemingly simple operation can quickly turn into a miniature engineering puzzle if approached incorrectly. But fear not, guitarist! This guide will walk you through a straightforward, damage-free method for removing even the most stubborn battery, ensuring your MXR pedal continues to deliver pristine tone without unnecessary stress or repairs. Let's dive into the step-by-step process to get that battery out safely and efficiently.

Preparation and Safety Guidelines

Tools Needed
  • MXR Pedal
  • Flathead screwdriver
  • Thin, strong object (e.g., a docket)
Safety Guidelines
  • Always disconnect the power supply from the MXR pedal before attempting to remove the battery. This prevents accidental short circuits and shocks.
  • Avoid using excessive force. If the battery is very stuck, try gently rocking it back and forth before attempting to pull it out. Forcing it could damage the battery compartment or the pedal itself.
  • If you're having significant difficulty, consider seeking assistance from a qualified technician or contacting MXR support. Do not risk damaging your pedal trying to force the battery out.

Step-by-Step Instructions

  1. Prepare the Pedal

    • Remove all screws from the back of your MXR pedal.
    Remove all screws from the back of your MXR pedal.
    Prepare the Pedal

  2. Initial Removal Attempt

    • Attempt to pull the battery out with your hands. If it's stuck, proceed to the next step.
    Attempt to pull the battery out with your hands. If it's stuck, proceed to the next step.
    Initial Removal Attempt

  3. Find a Lever Tool

    • Find a thin, strong object that can fit under the battery (the narrator used a docket).
    Find a thin, strong object that can fit under the battery (the narrator used a docket).
    Find a Lever Tool

  4. Apply Leverage

    • Gently slide the thin object under the battery to create leverage.
    • Use the thin object as a lever to pry the battery loose, applying steady and even pressure.
    Use the thin object as a lever to pry the battery loose, applying steady and even pressure.Use the thin object as a lever to pry the battery loose, applying steady and even pressure.
    Apply Leverage

  5. Remove the Battery

    • Slowly and carefully pull the battery out. Avoid using excessive force to prevent damage.
    Slowly and carefully pull the battery out. Avoid using excessive force to prevent damage.
    Remove the Battery

Read more: Best Multi-Effects Pedals for Guitarists in 2017: A Comprehensive Review

Tips

  • The thicker the tool you use, the better leverage you’ll have.
  • Be patient and persistent; it may take some effort to remove the battery.

Common Mistakes to Avoid

1. Using Excessive Force

Reason: Applying too much pressure can damage the battery clip, the pedal's casing, or even the battery itself.
Solution: Use gentle, even pressure and consider using a non-metallic tool for better grip and leverage.

2. Ignoring Battery Corrosion

Reason: Corrosion buildup can weld the battery in place, making it extremely difficult to remove.
Solution: Clean the battery terminals and the battery clip with a cotton swab dipped in white vinegar or a specialized contact cleaner before attempting removal.

FAQs

What if I've already tried prying the battery out and it's still stuck, and I'm worried about damaging the pedal?
If gentle persuasion with tools hasn't worked, avoid using excessive force. Try using a thin, flat object like a guitar pick or plastic spudger to gently work around the edges of the battery, loosening it bit by bit. If the battery is severely corroded or swollen, replacing the battery clip might be necessary. If you're still concerned, consult a professional repair technician.