I always plugged my Toshiba laptop in while using it. This way it stayed charged because otherwise if I plugged it in to charge by itself I might forget about it. With all of our storms in th esouth I didn't want to take a chance of a power surge or lightening strike or just getting the machine hot. As you can tell I'm not an expert on electrical issues. I bought my laptop in 2006 & it has been going strong for years though, showing a high battery indicator. Would this be the wrong thing to do w/ my 1st IPAD?