Could my charger have blown the fusible link?

[JPERL]

Here is the back story. My 2nd Van I don't really drive much but keep a battery charger on it 2Amps all the time. The alternator died 2 weeks ago and was planning to get to it this weekend. Up until this morning the vehicle had electrical power. Its as if I have no battery installed . I had to go to work and could not spend time to troubleshoot

Confirmed so Far
Battery has voltage 12.6. its a new battery and so I have 12.6 V I have yet to check grounds or the fusible link. Since nothing was hooked up or removed its weird that I would get a failure like this over night. It would have to be a fusible link, correct? I mean not even the door light comes on

[Jan-Willem]

I think I would first check the physical battery clamps and how the cables are attached to it. Then see if the ground cable from the battery to the frame has not broken off. If your cable is as crusty as mine was, it could easily have (almost) broken of when you replaced the battery

[JPERL]

fusible link blown and replaced. All good. Alternator is being replaced its bad