MY DELL 830 LATITUDE LAPTOP IS GIVING ME THIS WARNING,

SOURCE: Dell Inspirion 1526 Laptop Battery is not charging

Sound like the battery. Take the battery out and there should be a power meter on it, press it, if there are three lights that flash, the battery is shot. Not all batteries will flash if they are worn out, but they are supposed to. Try a new battery, I believe this will coorect the issue.

SOURCE: My dell Inspiron 1318 laptop's battery is not charging.

check power supply see if its putting out voltage to laptop

SOURCE: Post Boot message for my Dell Inspiron 1521

When you received the system as out of the box and you get this message "The AC power adapter wattage and type cannot be determind" let the Dell tech service know that they sent you a wrong or incorrect type of AC Adapter.
If this message not was not appearing before it just happened recently try to download and install the latest BIOS version from the support site.
If all fails remove the batt and check if laptop can work with AC adapter alone, because issues like AC not determine may not charge the battery and laptop may not work with AC as well, maybe laptop is already running on battery power.

SOURCE: dell c640 laptop when not power on when using ac

Yes, you should replace you battery, go http://www.feevoo.com , you can find many cheap laptop battery, laptop accessories there.

SOURCE: My laptop isn't charging ,

Hello.

From your description, your battery is faulty and needs to be replaced.

You could find your battery at the Dell site, here:

http://accessories.us.dell.com/sna/batteryconfig.aspx?c=us&cs=19&l=en&s=dhs&dgc=IR&cid=dhspfyd_pb&lid=pu_h

Or, if you prefer, choose an online site or purchase locally.

Hope this helps.

Testimonial: "ta for your help , thought I needed a new battery, what you said confirms this. Thanks "