compacq presario 1610 plug won't work

[ilovecows]

I have an old compaq presario 1610, and the plug on the computer won't take power anymore. Is there some way to replace it, or is there a external battery charger available to just charge the batteries without plugging in my computer. I have bought 3 different ac adapters and I plug them in and it shows nothing on the computer screen that it is plugged in. I think the pin is shot where I plug it into the computer. Any suggestions???? Thank you