New 5200mAh Replacement Battery for Gateway M-1618 M-1629 M-6816 M-6817 M-152s m-1632j M-6854m mg1 sa6 SQU-715 M6205m M6206m M6207m M6305 M6307 M6308 SQU-720 SQU-721 W35052LB Series Laptops