JBL Flip 3 battery lasts for a few minutes only although it appears to be fully charged. I've had this speaker for a couple of years and I'm quite fond of it,
JBL Flip 3 Stealth Portable Bluetooth Speaker, Black - Walmart.com
JBL Flip 3 review: Is it still worth the money? - SoundGuys
Amazon.com: JBL Jbl Flip 3 Splash proof Portable Bluetooth Speaker, Blue : Electronics