Unfortunately my fix only lasted a few months. Once the reconditioning started back up, it has reported the battery as failed.
since my battery was dead and not charging, I’d guess that “0x#0 = 17” is dead battery.
The batteries have a bar code and a tiny + and - that indicate which is tab positive and negative. The one I bought on eBay for $19 has wires already connected to the battery - Phew! So I just had to make sure I connected the correct terminals.
Now my battery works and it’s conditioning. Unfortunately I had a drive failure at the same time as my battery died - so I lost the RAID config and data. Two+ years later my Xserve is back in action!
This step takes the most time.