Sorry but I can't find the procedure online but it was in all the Sony manuals that I've seen. Try this first.
Now there are issues if owners leave a nearly dead battery in the laptop. The old battery can tax the charging circuits and fry them. This can be expensive. Also is it this a 3rd party chinese battery?
So, I ordered a replacement battery for my Vaio PCG-K35, and it doesn't work. When the battery is in and I'm plugged in, the battery light blinks as if it's charging, and the taskbar icon acts like it's stuck charging at 56%. But if I am not plugged into the wall, I can't even turn on the computer.
The model is BP2NX instead of PCGA-BP2NY, but every website I checked says that they are interchangeable. It is the same voltage (14.8V), but the capacity is 4400mAh as opposed to the original 4000mAh.
Is the problem just that the battery is completely dead, or is it something more complicated? This is the first replacement battery I've every bought, and I'm not familiar with it all. Thanks for your help.