VERIZON FIOS Upgrade Replacement Battery (2 Pack) 12V 8AH SLA Rechargeable Battery 15% Longer Run TIME Beiter DC Power UPGRADE TO 8AH AND RECEIVE 15% LONGER RUN TIME DIRECT REPLACEMENT FOR VERIZON FIOS 12V 7AH EXACT SAME SIZE Battery Life 3-5 Years Under Normal Conditions 2 Batteries