Can I charge this tablet using the usb cord?

Recenlty found my older sons old innotab 3 and can't find the original charger that came with it. Did find the usb goes that came with it, says its used to hook it to computer to get more games. Will this also charge the tablet?? Or can I use the usb cord and plug it into my phone charger box and charge it like that?? PLEASE help!