I have an Aspire 5516 that I thought had an issue with the battery being very old. Yet when I replaced the battery with a new one, the laptop came on normally, but was not charging the battery, and eventually it shut off from having drained the battery too low.
I removed the power plug and the battery, held the power key for 30 seconds, and then plugged the power plug into the laptop. Pressing the power button resulted in the blue power light on the front and the ON button coming on for about a second, then turning off. It seems like it is polling for a signal that is not present, and shutting down when it is not found.
Putting the battery back in and plugging the external power in gives me a very slow-blinking, inconsistant orange light. The machine will not turn on. "Charging" the battery for several days like this yields no different results.
I have checked the connections to the plug from the outside of the laptop, and have made sure there is good contact with both the center pin and the outer conductor.
Checking the voltage on the plug, I believe I had 15V. Checking the pins that contact the battery (the extreme end contacts) when the power is attached to the laptop showed 0V across them. The other pins showed 3.3V to ground.
Online searches mention a fuse that could be the battery's charging problem, but my understanding is that the machine should function on power cord alone with the battery removed. This is currently not the case.
Is the laptop designed to power on and function with no battery if connected to external power?
If it is designed to be powered externall only and it is not working, what could be the cause?
How can it be repaired?
What would cause the battery to not charge?
Thanks in advance for any help.