All of a sudden a red cross has appeared over the battery icon in the bottom left-hand corner of my computer desktop (when I move my mouse over it, it says "0% remaining" all the time. The on button, on the right of the laptop, is constantly flashing green all the time (very distracting!). Also the charging light, a small battery image on the front of the computer, is constantly flashing orange. This is all while the laptop is plugged in.
When I unplug the laptop, it stops working altogether..
When I leave the laptop plugged in, but have it switched off, it still doesn't charge up the battery.
Does this mean the battery is dead?
Is there any solution to this please? The computer/battery is not too old, and I don't understand how the battery can go completely all of a sudden.
I've tried to take the battery out and put it in again several times, but the issue is still occurring.
When fully charged, the laptop would work for about 45 minutes until the problem started occurring today.
If I need to buy a new battery, does it make any actual difference what brand the new battery is please? I don't feel like buying Sony unnecessarily, as they are very expensive and all I've had is one problem after another with my Sony laptop.
Is it possible to buy a battery with a longer life, as even when I bought the computer brand new it only remained on for about an hour if not plugged in?
Thanks in advance for your help.