my HP laptop is about 5 years old now, when i unplug the cord and use it just from the battery, after about 5 minutes or so it just shuts off, no shut down screen or nothing just off, like the power was taken away. I have changed the battery and gave it a good cleaning about 2 months ago when this first started, but is doing it all the time now when it runs off the battery.
Any ideas why, could it be needing a good cleaning again?
thanks