You can buy specialist Backlight-Batteries from certain retailers, but the batteries are pricey and would certainly not be an inexpensive purchase. It's likely, judging from the ones I have seen, that buying a new Pixel Chix TV would be cheaper, and far less work than dismantling your Pixel Chix toy! As long as you can see your Pixel Chix I hope it will not become too much of a problem, but I understand that it's important to keep your Pixel Chix equipment clean and functional at all times.