CoreParts Battery for Cable Modem 50.32Wh Li-ion 7.4V 6800mAh Black, for ARRIS Cable Modem MG5000, MG5220, SVG2482AC, TG1662, TG1672, TG1672 TG1662, TG16x2G, TG8, TG852, TG852G, TG862, TG862G, TM1602G, TM5, TM502G, TM502H, TM504G, TM504H, TM5x2G, TM6, TM602G, TM602H, TM604G, TM608G,