Maybe I missed it, as the other people asking the same unanswered question but it probably should've been in the parts section: the type of battery to use to replace this? I love this little speaker but my charge is down to around 10-15 minutes :(

Before tearing it down and possibly screwing it up..it would be nice to know what type of battery it uses and ordering it before even undergoing the teardown.

Thanks in advance!

- J