361-00072-00 Original Replacement Battery For GARMIN Forerunner 220 225 230 235 620 630 735XT + TOOLS - AliExpress
Amazon.com: Synergy Digital Smartwatch Battery, Works with Garmin Forerunner 735XT Smartwatch, (Li-Pol, 3.7V, 180mAh) Ultra High Capacity, Compatible with Garmin 361-00072-10, 361-00086-00 Battery : Electronics