Most JBL Bluetooth speakers, including the Xtreme 2, offer portable operation via an internal battery. And when that battery goes dead, you can recharge them via an AC or car adapter. To facilitate recharging this speaker, the Xtreme 2 comes with a 19 volt AC power adapter. Sometimes though, the JBL Xtreme 2 experiences charging … Continue reading JBL Xtreme 2 Charging Issues — Solved