How do I maintain the battery health of the JBL Tune Flex?
To prolong battery lifespan, fully charge the earbuds at least once every 3 months. Battery life varies by use and settings. Additionally, the manual warns not to attempt to open, service, or disassemble the battery, and to dispose or recycle used batteries according to instructions. (Page 32)
From the official Jbl Tune Flex Earbuds manual, page 32
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