Buy from Amazon : http://www.amazon.com/gp/product/B009TBQ69U?tag=wayofcats-20
2000mA 6V Replacement NiCad Battery for RCA BB-700 Video Cameras - Empire Scientific #EPP-150-2
2000mA 6V Replacement NiCad Battery for RCA BB-700 Video Cameras - Empire Scientific EPP-150-2