I am not able to charge my battery, and the computer will not run with the battery out. Sometimes when I wiggle the power cord at the input, there will be a quick yellow charge light, but it is only lit for a second.
More aboutacer aspire 3050 power problems
That sounds like either your charger or your laptop's power supply is faulty. It might simply be getting old and starting to die. You could try another battery and/or charger, but IDK if it will help.