Sears has this model posted. seems pretty spendy to me, if i were you I would look around a little more to see if i could find one cheaper, this one seems to be a little over 50.00 YIKES! there might be a way to rebuild your old battery.
http://www.sears.com/es/us/toshiba-pa5208u-1brs-toshiba-cb35-b3330-chromebook-2/p-SPM10817031225?plpSellerId=PC%20Parts%20Ohio&prdNo=1&blockNo=1&blockType=G1