Laptop Is Losing Charge Quickly

It could be because it a very old battery. My Dell Latitude E6400 is nearing eight years old and it was rated with around 4 hours of battery life when new. Now, I get an alert saying I need a new battery and a full charge lasts about an hour on a good day.

Try getting a replacement battery. This should be perfect:

http://www.laptopbatteryhq.com/dell-insp...

Hope this helps -

Jono

Try unplugging the laptop and letting the battery to die completely, then plug it back in and leave it to charge fully without using the laptop. If it is still losing charge quickly then the battery is most likely bad and must be replaced with a new one.