GG02XL Battery for HP Chromebook x360 11 G4 GG02XL Replacement Battery for HP Chromebook x360 & Fortis Series Power the school day without limits. This brand new, high-capacity 47.3Wh Li-ion battery is a direct replacement for the original HP GG02XL, designed to deliver long-lasting performance and reliable power for your HP Chromebook x360 11 G4 and rugged Fortis 14 G10/G11 educational laptops. EE Fortis 14 G11 7.7V 47.3Wh