I replaced Airport card, but now my battery won't charge.

I succesfully replaced my BCM94321MC airport card with a 94322 card. It works great, reception is better, etc!

However, I just noticed that my macbook won't charge anymore. It says that it's currently has 0 charge, and that charging will take 20 hours.

When I pulled the powerchord, it immediately turned off. (after 15+ minutes of charging).

I had used my macbook yesterday until the battery was empty, so I used the powercord today. However, normally it doesn't shutdown immediately after a bit of charging.

I normally can use it for at least 2 hours on battery and coconutBattery says the current capacity is 4000mAh and Design capacity is 5020mAh

Magsafe connector light is orange, so it's charging. Without battery it stays green and the system then doesn't detect a battery at all, while now it does.

Is it possible something went wrong with the reassembly?