Hello,
I have a 16 month old Dell Inspiron N5110 with a 48Wh 6-cell battery. The battery worked fine until yesterday, lasting up to 2 and a half hours.
Now my laptop won't even turn on without the AC adapter, and the battery LED is constantly flashing 4 times orange, once white, repeat. If I boot up the computer with both the battery and the AC adapter, it says "plugged in, not charging". And if I then unplug the AC adapter it instantly shuts down.
I've never had any overheating problems whatsoever, and like I said, the battery apparently had perfect health until yesterday. I've also checked the AC adapter , which is working fine.
I'm afraid of spending around $120 on a new battery and find out that wasn't the problem at all.
If anyone can help me figure out this issue it'll be much appreciated.