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  • Is your location prone to power brown-outs? Does it do this if connected to a different wall socket?
    – Burgi
    Commented Jan 6, 2016 at 16:35
  • @Burgi Thank you for helping me. I did have this problem also in other locations.
    – Z0q
    Commented Jan 6, 2016 at 17:03
  • @Z0q If battery is new and cable is tested, the next likely thing is the port on the laptop. If it is spacious (wiggles) could be a sign of failure. The easiest way to test this is by using another charger.
    – Some Dude
    Commented Jan 6, 2016 at 17:33
  • The port could be at fault, although some movement isn't necessarily a problem as it's on a harness rather than soldered to a board. As such, these types can be more prone to movement, usually only up and down though. The fact that the lights on the laptop change when it stops charging makes me thing it's something to do with the power circuitry, or possibly a fault with the power adapter which may have a certain 'intelligence' to detect it's genuine.
    – Jonno
    Commented Jan 6, 2016 at 17:38
  • @Jonno: I wonder if I should replace the DC Jack or the adapter. It looks like the DC Jack should be pretty easy to fix if it is not soldered. The battery is an unofficial one by the way, but it works fine. I think it would be strange if it would not work only sometimes. If it is intelligent to know that it is unofficial, it would not charge at all, right? P.S.: If it is not charging, it does also not boot the laptop without battery. So I think it does not have anything to do with the battery!
    – Z0q
    Commented Jan 6, 2016 at 18:00