Macbook charging extremely slowly

When I plug in the charger, the green LED is very dim. The computer profile says the charger is not connected, but the percentage charged is going up, just very slowly. What's wrong?

Is it the battery? Or the Logicboard, as I've read on other threads?

Battery Information:

Model Information:
Serial Number: XXXX-bq20z951-396b-c58
Device name: bq20z951
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 002a
Hardware Revision: 0005
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 980
Fully charged: No
Charging: No
Full charge capacity (mAh): 3752
Health Information:
Cycle count: 835
Condition: Good
Battery Installed: Yes
Amperage (mA): 161
Voltage (mV): 11354

System Power Settings:

AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 0
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: No
Battery Power:
System Sleep Timer (Minutes): 15
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 15
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: No
Charging: No