UB6120 - Data Shield ST550 UPS Battery 6v 12ah sla battery - 4 Pack UPG # D5736 UB6120 6V 12Ah. Pack of 4 Dimensions: 5.94 inches x 1.94 inches x 3.94 inches. Weight: 4.18 Lbs SLA/AGM maintenance free, spill proof battery Rechargeable battery that can be mounted in any position, resists shocks and vibration 1 Year Warranty