Most Bluetooth speakers, including the JBL Wonderboom, offer truly portable operation via their lithium ion batteries inside. And when said battery dies, you can recharge with an AC or car adapter. Sometimes though, you may find that the JBL Wonderboom won’t turn ON or charge. To solve that, we’re here to help. JBL Wonderboom Won’t … Continue reading JBL Wonderboom Won’t Turn ON or Charge