I’m not a good caretaker for my laptop’s battery – I leave it plugged in for days at a time, for instance.
It’s recently been communicating its hatred of how I treat it by dying ever-quicker deaths.
When I first got the laptop, the Win7 10% (“low battery level”) and 7% (“reserve battery level”) warnings (5% is “critical battery level”, when it actually hibernates) happened all the time; everything worked great.
Now, most of the time I don’t even get the 10% warning, let alone the 7% one (I haven’t seen the 7% one in months). The machine just dies. Not “went into hibernation”, either – when I plug it in and turn it on, there’s no “Resuming Windows”, just the F8-style menu where I have to say “Yes, start Windows Normally”.
Now, I can go into Power Options –> Change plan settings –> advanced and change the percentages for those levels, but I know it won’t be much longer and I’ll have to replace it.
I guess I could try some full-charge/full-discharge cycles to see if that helps. We’ll see.