Battery: https://www.amazon.com/gp/product/B001AEQCTS

SSD: https://www.amazon.com/gp/product/B008NAI0YC

Zune archive with instructions to update hosts file: https://onedrive.live.com/?authkey=%21APGZWB8OY8tE9Xo&id=8EA7CE299BC476C%21225423&cid=08EA7CE299BC476C

Helpful videos:

Battery replacement: https://www.youtube.com/watch?v=92QPlV5K5zI

Hard drive replacement: https://www.youtube.com/watch?v=B1FWPkXKqO0

A really nice and modern video updating everything: https://www.youtube.com/watch?v=WoEctidMLwU

I bought this one from Amazon: HQRP Replacement Battery Compatible with Microsoft 1st Generation Zune MP3 Player https://www.amazon.com/dp/B001AEQCTS/ref=cm_sw_r_apan_i_22S81QEPV4KHCAX6AMAG?_encoding=UTF8&psc=1