I have a 3year old Acer E series- that the AC adaptor stopped working. I purchased this based on the size available and it worked. The connector part has a small green light that turns on to confirm its connected. my only downside is that it gets warm after about 30 min of it being plugged in. It comes with a little plastic row of attachable plug in heads.. these are not labeled or anything, you will have to guess which size fits your lap top. Its fairly easy to use and it worked on the first try.. would recommend it..
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