My Kindle will not turn on, can I get some help?

I lost my Kindle Fire (SV98LN) roughly 3 years ago. Earlier today, my brother found it. It has been dead this whole time (I think). I have looked for other ways to get it to turn on, (like holding the power button for X seconds, etc.) but none have worked. I have had it plugged up for a little while and then tried again, still no result. It doesn't even show that it is charging (some light is supposed to turn on but none has). Is there a way to fix this or do I need to just replace it?