My dell inspiron1750 is on idle, not charging the battaery

If your laptop computer runs normally on your dell 1750 ac adapter, but the battery won't charge, please try the following troubleshooting steps:

1) Remove the battery from the system.

2) Look at the connectors in the bay and on the battery for signs of physical damage.

3) Check the battery charge by pressing the status button or image on the battery near the LED's. Note: The lights indicate the current amount of charge on the battery. If all the LED's come on when you press on the butto, the battery is fully charged. If fewer lights are lit, then the battery is partially charged. If any lights flashm or blinkm there could be a problem with the battery.

4) Reinsert the battery; puch until it locks into place and the latch snaps back to the locked position.

Is the battery fully charged? Is the battery dead? Shut down, unplug , remove battery, reseat battery, reboot. Will it boot on the battery only? If no replace battery.