Welcome.
Retired Samsung me that sometimes continued to charge the battery, sometimes it does not respond to the power. Replaced Charger (isl6256) indicates charging laptop batteries, no battery works fine but the battery off from time to time and the battery itself will not turn on. Before repair, the battery held battery operated. I do not have an identical battery swap. Tensions on the battery inserted and turned the laptop.
7: 0v
6: 0v
5: 3.2 V
4: 3.2 v
3: 0v
2: 0V
on pins 7 and 6 shorted to ground
What could be causing this?

Thanking you..