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Can I Replace the Rechargeable Battery in My Garmin Fitness Device?
Many Garmin® fitness devices feature a rechargeable, lithium-ion battery that is not user replaceable. Sometimes power related issues can be solved through some simple troubleshooting steps. See the following FAQ for assistance: My Fitness Device Will Not Turn On or Charge
For Garmin devices that feature user-serviceable batteries, refer to your owner's manual for instructions on replacement.