You can take the battery apart to use the universal charge, you can also use the speaker's built-in jack to charge with the data cable, if there is no power off, directly connect the data cable to charge it, do not have to press the switch, press the switch will always notify the connection of the speaker, I now use a JUNEED Bluetooth speaker playground is relatively simple, do not have to disassemble the battery and so on. Connect the computer directly with the data cable and you can charge it directly. Hope it helped