C200 play during charging

Is there any way to play the c200 while it is plugged in?  I am driving a long distance and need it to play for longer than the battery alone will allow.

I am flying by the boards , just a guess though I don’t know for sure .

below - amazon for power inverter .

http://www.amazon.com/Wagan-EL2402-SmartAC-Power-Inverter/dp/B000YQT6RS/ref=sr_1_9?s=electronics&ie=UTF8&qid=1321179105&sr=1-9

You could couple with an AC adapter .

They have car adapter for sansa but with poor reviews .

If I were you I would search amazon and others .

Be sure to read reviews, the straight car adapter didn’t give good results by reviewers .

I am looking for accessories as well .