... Description Replacement Laptop Battery For Acer TravelMate 8100 Series And Ferrari 4000 SerisePart No. 4UR18650F-2-QC145, 4UR18650F-2- ... Fit Model:Acer TravelMate 8100,8101, 8102,8103,8104,8106 and Ferrari 4000, 4001,4002,4003,4004,4005 Series. Some ... short-circuits to guarantee your safety and protection.3) Smart Automatic Tester quickly and conveniently tests laptop batteries for all models.4 ...