Strange laptop issue

Kakrunch

Honorable
Jan 21, 2013
1
0
10,510
Ok. I do tons of laptop repair, but I have ran into a puzzler. I have a Lennovo G530. Will not charge battery. Will only run off of AC if battery is removed, otherwise only runs off of battery. I can occasionally trick it into charging a battery for a short while if I plug it in then insert battery. I have tried 2 brand new batteries and a new aftermarket charger. Any ideas?