That’s what I’m thinking too! The housing is probably too small to house it all but man it would be cool

It’s not too shabby, never really counted it but I believe it lasts for about 6h at least on a full charge? I usually only drive for around an hour max though so it’s more of a guesstimate

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…