Good evevning all. My wife and kids are leaving for florida on tuesday. (I'm staying home )

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My daughter wants to take her portable DVD player with her. She never uses it so I decided to charge the battery . Plug everything in and zilch...no power light. How do I check if the transformer thing is working . ?
Can I grab another one from something in the house or are the out put levels different for each specific application ? I asked her when she noticed it wasn't working ..She's 6 yrs old and said "I don't know"...
Damn kids these days have so many electronic toys its hard to keep up..