Here is a couple worth looking at.
http://www.smart-fly.com/Products/BatShare/batshare.htm
http://www.rc-electronic.com/html/en.../englisch.html
look at the DPSI BIC on the 2nd link (rc-electronic) under accessories. Can purchase from Desert Aircraft. I think it was around $120.00 and instock when I inquired about it.