Instruction: Answer the given question using the supporting document.

Input:
Question: Where you can purchase a battery for this tv
Document: The first time I receive it the tv won't charge I charge the battery directly and after all it's work fine the sound quality  is good but the color isn't so good as I though , the battery remain 2hrs . it 's good tv i give 7/10
If you are looking for the best try mygotv what a difference between the two. I believe they  have discontinued mygotv what a shame . But what is up these companies charging more than double i payed 90 bucks for this tv about a year ago .
I had an Auvio for some months but then couldn't recharge the battery. I learned, too late, it's not good to leave it plugged in all the time. I love my little TV. Sometimes I can't get a local station that is not the major networks but the picture is clear on all the stations with me. If I'm not going to be home for Jeopardy I take it with me. Otherwise I have it where I work, by my computer. It's a good size for the space.
I am very pleased with this little TV. It works well and receives a clear digital signal without any additional equipment or connections. Good quality picture and sound. Highly recommend!
Auvio make a good portable digital. I first bought the little 3.5 inch one that actually works better than the 7 inch. But the 7 inch came with a second antenna which brings in stations as good.
Answer: Internal rechargeable battery probably can't be replaced..but I have had mine for years and recharged dozens of times