Hard to say exactly. I don't know why you would bother to buy and install a solar panel and a charge controller before replacing a known bad battery.
The bad battery likely kept the overall system voltage rather low as it was likely a huge current sink. With a good battery your inverter is likely seeing higher voltage than it used too.
Some charge controllers can be damaged if connected to an array with no battery connection. A bad battery might cause a similar fault. Therefore you may have damaged the charge controller.
There's not necessarily any problem with the fan running. A laptop could draw nearly 200 watts in my experience. I would expect the fan would run.
