Most JBL Bluetooth speakers, including the Flip 5, offer off-grid sound via an internal battery. And when that portable power runs out, you can recharge it via an AC or car adapter. To facilitate recharging this speaker, you can use a USB-C charger with the speaker, that delivers 5 volts at 3 amps. Sometimes though, … Continue reading JBL Flip 5 Charging Problems Solved