Your new battery might has some issues. Put your old battery back on and try your charging cord and base. If it starts charging your old battery; it means new battery has a problem. If old battery doesn't charge too; i suggest you to try a working charger. If it still doesn't response; most probably during replacement process; you damaged pins of your phone's charging port connector.
If broken pin is at above red circuled area; you are lucky because it has price around $5. But if broken pin is at motherboard side, it may cost you around $50 or more due to motherboard repair.