Lenovo Z575 laptop 15.6"
Windows 7 Home
Unsure what original stock cord model number is
Good plug to outlet connection, seems secure throughout cord, at least until laptop connector.
My 2012 lenovo Z575 laptop has had some AC adapter or power issues. Battery seems fine. I had the same problem with the lenovo stock adapter after warranty expired (I maybe stepped on the cord accidentally, maybe pulling the cord, plus internal connector), and so about a year ago or less bought a universal AC adapter power cord which has worked solidly until a few months ago.
Issue is that though plugged in, it suddenly doesn't connect apparently and goes to battery power then it's kind of hit and miss. I have to jiggle the cord at the connection point, or angle it, or turn it, keep it in whatever position such that the icon shows it is on AC power without moving, instead of battery. Then inevitably, the cord moves and back to worrying if this is the last time.
It has been getting worse lately such that I worry I'll sometime have just the battery power, and then out of time to look for help online (this is my only device). I can go try a new AC adapter, but that seems like it may be the symptom and not the cure or that it may not help this time.
Also, because of this, I keep it fully 100% charged, instead of extending the battery life by keeping it (according to Lenovo's power management tool) at 50% which I've read is better for the battery lifespan.
How best to proceed? I've never actually taken in my PCs over the years for hardware issues anywhere, and it's a fairly cheap laptop.
Edited by leodv, 10 November 2014 - 02:31 PM.