Dead Battery?

I have an original DS, the Mario cart edition; I tried to use it for the first time in a long time. I noticed the battery was dead so I charged it. When it was down I tried to turn it on and the green light on the bottom turned on and then the bottom screen flashes and the ds turns of. My question to you all is, is my DS battery dead and needs to be replaced or is my DS dead?

It still has the warranty? You should send the machine to he shop where you bought it.

no the warranty has expired