Hey,
I've got an Inspiron 14 N4050 bought 4 years ago, never had a problem with it. 98% of the time I used it directly connected to the power outlet at home. When I plugged in the battery, fully charged, it went from 100% to 50%, then to its 30's and 10's real quick, maybe in a matter of 10 minutes, and then shut down.
I then bought a new, original battery because I thought that the fact of not using it in years and that the original battery was 4 years old could be the reason. I've followed the guidelines and I'm now using it for the first time. I fully charged it, and when I turned on the laptop it said it had around 2 hrs 20 min of battery. After a few minutes, around 3 hours 30 min. Then it set at 1 hr 32 min. After one hour of very low usage (Used Microsoft Word and read a few PDF's), its at 20% with 21 minutes left. I checked that the computer was at power saving mode and all that. The brightness is set far lower than high.
What should I do and where could the problem be coming from?
Thank you!