Lenmar Replacement Battery for Fujitsu LifeBook T4210, T4215, T4220 Laptop Computers 10.8V / 5200mAh Lithium Ion fits Fujitsu LifeBook T4210, Fujitsu LifeBook T4215, Fujitsu LifeBook T4220 Tablet PC; Replaces: Fujitsu FPCBP155, Fujitsu FPCBP155AP, Fujitsu S26391-F405-L600.