A:AnswerWe are glad you asked. You may connect your iPad via Bluetooth or the AUX input. By using the AUX input you'll be assured that there will be no interference while you're listening to your music.
You should be able to choose the audio output on your iPad so that you'll be able to enjoy your music through the Bose speaker.
A:AnswerFrom BOSE:
The SoundLink® speaker can pair with up to six Bluetooth® devices. However, it can only connect to, and play audio from one device at a time.
A:AnswerThe answer is yes if you can find the battery. Bose will want you to send it in for out of warranty repair. Get an estimate on the phone first as they will be expensive. See if you can find a place called Batteries Plus in the Houston are they carry any battery you will need. Be prepared that it may be almost as cheap to replace the speaker.