My dell 6400/E1505 turns on for a few seconds, then tuns off. Nothing appears on the screen. When it is off or on the battery charging indicator light does not light up. Ive tried taking the battery out and putting it back in. Does anyone think it is the battery or is it something more? Should I try to buy a new battery or is there something else you can suggest?

SOURCE: DELL INSPIRON 6400 BATTERY CHARGE PROBLEM

The battery has 5 small dots in it. Those are there for no reason. Those are actually LED lights. There's a button you can press. If we number the lights 1-2-3-4-5 with 1 being closest to the button, check the lights when you press the button. If 1-3-5 are lit, that means that you have a dead battery and needs to be replaced. Other than that, you're battery might still be working but nearing the end of its life. Goto support.dell.com -> drivers and downloads -> enter your service tag or system type -> download Dell Quickset. Once Quickset is installed, it will diagnose your battery automatically and let you know if your battery already needs a replacement. It is just sad that batteries are covered with a separate 1-year warranty only. You can also go to www.dellbatteryprogram.com and check if your battery was part of the Dell Battery Recall Program.

SOURCE: not charging

Dell PA-10 & PA-12 have internal serial ROM chips that communicate with the PC via the tiny center pin in the powerr plug.

If that pin gets bent or is not making proper contact, the laptop USUALLY complains and runs from AC adapter but refuses to recharge the battery ..

SOURCE: Dell E1505 not turning On

That's a good posibility. Here's a link for Dell diagnostic codes and the manual for your machine.
http://pompone.cs.ucsb.edu/admin/530_Workstation/2codes.htm#1170334

http://search.dell.com/results.aspx?s=gen&c=us&l=en&cs=&k=e1505+diagnostic+light+codes&cat=sup

http://support.dell.com/support/edocs/systems/ins6400/en/om/MD402AO3.pdf

SOURCE: Dell Inspiron 9200 stopped working does not power on

This is a very useful post from LapTopReapir-101

Laptop is DEAD. How do your troubleshoot the problem?

In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead.
When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.
What you can do in this case?...

For more in this article please click on the link below.

Laptop is DEAD. How do your troubleshoot the problem?

if you have other questions just lemme know

SOURCE: Dell Inspiron 1501

Are you using the original charger or another. The Dell power system will give this message when you use a 70W charger on a system that needs a 90W charger - check the sticker on the back. Also, if the plug to the main board gets just a little loose you will get this message. Be careful you are not putting too much strain at the power plug or you will need a repair soon!
Jon