Display blanks but get back to normal after restarting multiple times

I have a dell latitude 5300. When ever i starts it, it goes it's LED battery indication light blinking 3or4 times white and 3 or 4 times orange (indication of battery low) even if the laptop is 100 charged. After many attempts i can turn on the laptop and can use it without any hesitation sometimes by doing too many restarts the laptop screen starts to flicker. Sometimes it's display gets a lesser ratio.