回複：請教：765(EAD card)renewal要提前多久申請？

For EAD expires while renewal pending:

If your eligiblity category is I485 pending (c9), you need to have the card renewal approved to resume work. I assume you are in this category?

For certain categories, you can work up to 180 days while pending approval, one recent example is STEM OPT (c3ic)