Orange light at AC in plug flashes constantly, unable to start computer on battery
Product: Probook 470 G1
Operating System: Microsoft Windows 10 (64-bit)
The little orange light next to the AC in plug is always flashing rapidly - even after the computer has been shut down, unplugged and put away for storage all weekend. If computer is shut down overnight but still pugged in, light continues to flash. Never stops. I cannot start the computer unless the power cord is attached and plugged in. However during a recent power outage the computer must have gone on to battery power as it did not lose power, but screen brightness decreases (goes into power save) if only on battery. Battery icon on task bar always says '98% available, plugged in, not charging'.
What does the flashing orange light mean, and why won't computer power up on battery only?