EOS 1100D Laptop Doesn't Detect External Power Supply

[il_dani]

Hi i have noticed that my laptop doesent detect my camera with the external Power supply (bought on Amazon), but only if i plug in the battery.

I really Need to use external Power because the camera Is attached into the telescope for 3-4 h.

Whats could be the problema?

[Waddizzle]

Are you also connected to the USB port on the camera?

Sounds like there is an issue with your power adapter.  If communication has stopped, then that is usually a red flag for ground loop associated with the power adapter not being properly grounded internally.  

I recommend that you use the Canon power adapter, which is known to work properly.

[il_dani]

Yes i am also plugged via USB cable.

When i use my adapter laptop detect a "unrecognize device" error.