I have one of these, not sure if its the exact model but i can confirm. Comes with a battery.
Can also confirm (to my annoyance) that you cannot have it charging and play music at the same time. So don't bother buying a slim angled micro usb cable like I did...
All these answers are so killjoy and boring. Like yeah we should strive to make our own planet better, but why not also do this? Building habitats on other worlds doesn't prevent us from caring for this one.
Plus maybe trying to make a liveable environment in space can give us new insights in preserving the one at home. Like how solar panels have come from space exploration.