I have been using an HP ProBook 4540s for a little over a year and recently came across this problem. When I use my laptop without plugging in the charger, after about 45% of battery remains the laptop just shuts down. When I plug in the charger it works fine (after it restarts).
Please help, my battery apparently is OK as I have checked it. What could be the reason and how do I fix it!
Any help would be appreciated.