Covers the details of JBL Wonderboom 1 Speaker battery life. Describes how to know if the battery life is shortening over time, and what the amount of life left per recharge is. JBL Wonderboom 1 Speaker Battery Life: Step by Step Monitoring 1. First, Turn ON the JBL Wonderboom 1 Speaker You won’t be able … Continue reading JBL Wonderboom 1 Speaker Battery Life