MacBook does not charge after battery replacement

Oh I am sorry, the little latch broke off or disconnected. I don't think its broken because I have put it on afterwards like it was originaly. But still the problem persists. As you said this is not vital, so maybe it is something else?

@koens Oh, no worries, those come off pretty easily, I have done it more than once myself. I'm glad you got it back on again. I'm not seeing anything else that's obvious that would cause this, I would try reseating that specific connection though, and make sure the cable doesn't have any damage.

Okay I will check on it after work! But what can I do if it seems like the cable has any damage?

@koens That's the tricky bit. Because I believe in this model the cable is soldered onto the battery management board. I haven't ever actually checked the logistics of this because I never needed to, but it definitely is not intended to be independently replaceable. So you would either need to do some soldering repair work on the cable itself if it was torn, or solder a new cable onto the board if you could find a replacement cable.

I will post a new picture tomorrow morning, if we cant figure it out by then. I will just bring it to a apple store and get it fixed. Hope it wont cost me another macbook pro :D