Bread Crumb Link
  
http://www.ebay.com/itm/2X-18V-3000mAh-NI-MH-Tool-Battery-Makita-1822-1823-1834-1835-PA18-Gray-Black-/332383468129?hash=item4d63993a61
US $52.99
http://www.ebay.com/itm/20V-4-25A-85W-AC-Adapter-Apple-MacBook-Pro-15-Retina-A1398-A1424-US-Plug-US-/352174855674?hash=item51ff41d5fa
US $18.79
http://www.ebay.com/itm/7-4V-2500mAh-Battery-Sony-NP-F330-NP-F550-NP-F570-NP-F730-NP-F750-NP-F960-/352161384499?hash=item51fe744833
US $7.89
http://www.ebay.com/itm/Panasonic-HHR-4DPA-HHR-55AAABU-KX-TGA931T-Battery-2-AAA-1-2V-1000mAH-NI-MH-/202066497001?hash=item2f0c1a0de9
US $3.89
http://www.ebay.com/itm/14-4V-2500mAh-Vacuum-NI-CD-Battery-iRobot-Roomba-500-510-530-570-580-Series-/332379899268?hash=item4d6362c584
US $15.98