Round Plug AC Charger for Bose SoundLink I, II, III, 1, 2, 3 Wireless Bluetooth Speaker 404600 414255 306386-101 369946-1300 301141 Power Supply Adapter

so you want to know how much battery life you're Soundlink speaker has left before you take it somewhere let's take a look now although this pertains to both models we're looking at the soundlink bluetooth mobile speaker to hear press and continue holding the power button you'll see the battery indicator illuminate this green light you see here indicates your Soundlink speaker is anywhere from 70% to fully charged if the LED on your speaker appears yellow that means you have 20 to 70 percent battery life remaining probably a good idea to plug it in before you go out if it's red you have at most 20% battery life remaining so you'll definitely want to charge it for at least three hours to give it a full charge just so you know you can expect a fully charged battery to give you about three hours of playing time at maximum volume and about eight hours at a moderate volume level