An orange Light keeps on blinking!

Hi, I'm new to this forum, and i'm not that good with computers, but just starting yesterday, there has been this orange light that constantly blinks on my INSPIRON 8500by the battery symbol with a plus inside of it.  And i took out the AC adaptar cord, and when i did my computer turned off because the battery had no power.  I'm assuming that it is no longer charging, and i took the battery out and put it back in to see if the connection was off, but i still get the same results.  If anyone knows what to do, i would greatly appreciate it, because i like to travel with my laptop, and this is preventing me from doing so.

Thank You,

Shadow