My JBL Boombox is experiencing charging issues (already updated to latest version). It seems that when the battery level is low, the device displays a red light, but when i plug in the charger, it quickly jumps to four white lights and blinks normally. However, after approximately 20 minutes, the charging stops. When i plug it in again, it doesn't indicate a full charge but rather shows four LED lights with one continuously blinking. It never shows full charge even if i do the same plugging an unplugging continuously for 5 hours. Seems like it takes several breaks while charging. Can someone help me resolve this issue. Thank you