Amazon.com: Replacement Battery for Apple iPod Shuffle 4th, iPod Shuffle 5th, iPod Shuffle 5th Generation Part NO 616-0150, 616-0548 : Electronics
New Li ion Battery Replacement Repair Tools for iPod Shuffle 2nd Gen 2 / 3rd Gen 3|battery label|li-ion battery laptopli-ion battery materials - AliExpress
Check the status light and battery charge on your iPod shuffle - Apple Support
iPod Shuffle Battery Replacement – 2nd Gen | Noel Byrne