pc broke so I plugged my monitor via SP3 connection. Worked instantly. however wouldn't work in dock unless I plugged dock into electric, then worked fine. Question is, this will cause the SP3 to charge constantly so will this damage my battery?? Just wondering if I can continue to use dock for this or should I go back to direct hook up to SP3. Mine is i7 256 model. thanks again for all your help here for a newby.