I was in Bali a couple of weeks ago and went to one of the two main stores that stock quilting batiks. It’s near the old Denspasar markets, so you’ll likely need a driver to get you there and to escort you to the place: CV Dewi Mas, Jl. Gajah Mada 48 Denpasar, Bali, Indonesia (open 7 days a week from 9:30am; closes at 4:30pm Mon to Sat and at 1:30pm on Sunday)
I’d previously gone to the other store nearby (https://rhondabracey.com/2012/09/11/bali-day-3-monday-10-september-2012/), but this time wanted to check Dewi Mas out. As with the other store, you can buy fabric off the bolt (minimum 1 m cut; $3 AUD per metre), pre-cut lengths (lengths varied a lot — I got a 9.5 m length of a dark fabric; others were 1 or 2 m), jelly rolls ($13 AUD each), fat quarters, charm squares, etc.
For reference: 7.5 m = 1 kg in your luggage (and yes, they have scales where you can weigh your purchases), and 3 jelly rolls = 1 kg.
This was my haul, probably about 20 or so metres of fabric, plus 3 jelly rolls
Jelly rolls galore!
Two long walls were covered in fabric lengths
Pre-cut lengths of fabric (various lengths)
Rhonda Bracey: At Random 