Sony Vaio Pro: Lightest touch capable Ultrabook, up to 25 hours battery life
CWK Long Life Replacement Laptop Notebook Battery for Sony Vaio VPCEA17FG B VPCEA23 VPCEA36FM W VPCEE21FX VPCEA21 VPCEA24FM VPCEB13 VPCEB15 VPCEC3BFX VPCEA22FX B VPCEA36FM - Walmart.com
Battery for Sony Vaio PCG-61211T PCG-61211W PCG-61212T PCG-61212W VPCEB35 Laptop | eBay
Sony SVS151A11l Battery
Sony VAIO Pro 11 review: finally, a new flagship ultraportable to replace the Z | Engadget
Sony Battery Pack For VAIO Pro 11 and 13 - Add up to 8h Battery Life