HP Laptop wont start after battery dies

ok HD unplugged and re plugged. putting it back to gether and restarting

still blinking.. Ill shut it down and restart

Re-seat the RAM sticks and reset CMOS.

did the RAM sticks. Not sure about the resetting the CMOS if it worked or not. I found a few ways on the net, nothing seemed to work. Unless I didnt do it right. It still flashes at startup.

HPmom said:

no problems if the battery dosnt run all of the way down. If I plugit back in while there is battery life, all is well. Well, sort of, its been running painfully slow latley too.

This reminds me of a joke:
A guy says to his doctor: "My arm hurts when I do this" (he twists his arm around behind his back)
The doctor says: "Well, don't do that"

It is not good for a battery to run it all the way down to zero. That is why Windows default power settings warn you when you get to about 10% reserve and automatically shut down when you fall below that. Having the system shut off because of no power can cause all sorts of problems, both with Windows not shutting down properly and with the BIOS.
So, don't do that.

As for your system running slowly after these kinds of events that is not a surprise. Let me see if I can find some info to fix that.

This step-by-step from Microsoft is effective for most people:
Speed up my computer
(Note: choose "Fix it Myself" so you can see what it is that they suggest that you do. Always good to learn these things)

This tutorial is used often here at SevenForums:
Troubleshooting Steps for Windows 7

I also highly recommend downloading and installing CCleaner https://www.piriform.com/ccleaner from Piriform, the running the cleaner to wipe away all the stray files that can slow a system down.
Then running Windows own Disk Cleanup utility (access from the Start search box)

See if these help.

its not intentional when I let it run out. I know its bad, but..................when the kids are jumping all over each other, the laptop takes second to them LOL.

I know about the other stuf, defrag etc.

doing a system restore now. If all of this keeps up , I might just do a clean install

Well, if you do:
Clean Install Windows 7

And check this one out to see some good tips that apply to any install:
Clean Reinstall - Factory OEM Windows 7

Sit on those kids!

HAHA, I try to sit on them most of the time.

Thanks for the tips. I will read them over before I do anything.

I have to give a big thanks to you all who helped me here. This was the most help I have had on this problem.