Market timing can be brutal. Had that issue too with a tech project. Keep an eye on emerging trends and always be ready to iterate. Also, refine your MVP to test faster. Good luck!

DS220j is tight but ever considered building your own? I did with an old pc and some freenas magic. way more customizable. but hey, welcome to the NAS club! it’s all fun and games till a drive fails haha.

If you got a multimeter, check the battery contacts for proper voltage. If that reads fine, the problem could be internal. I'd recommend checking out some teardown videos; you might find something is loose or needs a clean inside.

lol RIP. Should've named it RAID ¯\_(ツ)_/¯ not RAID 5.