We advise you to watch the video below to make sure your battery is being charged correctly and is 100% functional. Basically, you connect the BATTERYBOKS 2 to the CHARGER 2, by inserting the charger cord (DC PLUG) into the converter (DC/DC Converter) followed by inserting the battery cord (DC PLUG) into the converter.
The average time for the BATTERYBOKS to be fully charged and ready to go is 3.5 hours.
The SOUNDBOKS can be turned on when connected to the charger as the sole powersource, however if you wish to charge while playing you'll need to insert a BATTERYBOKS.
Keep in mind it is possible to charge the BATTERYBOKS 2, with the CHARGER 1, and BATTERYBOKS 1, with the CHARGER 2. However we do always recommend using compatible products.