SigmasTek SP12-18HR 12V 18Ah UPS Battery — AJC® Replacement (AGM, NB)

AJC® replacement compatible with the SigmasTek SP12-18HR UPS battery. Electrical specs: Voltage: 12V (12 Volts), Capacity: 18Ah. Chemistry: Sealed Lead Acid (AGM). Terminals: NB. Physical specifications: Length 7.09 in; Width 3.03 in; Height 6.57 in. Weight: 12.1 lbs. Disclaimer: Our products are not affiliated with or authorized by SigmasTek. Why choose AJC® replacement batteries? AJC offers high-quality, cost-effective replacements suitable for thousands of devices and designed as exact OEM-fit substitutes for easy installation. Millions of AJC batteries have been sold worldwide. The cells are a UL recognized component and purchases are covered by simple 30-day returns plus a 12-month warranty. SLA battery care: Recharge after every use to avoid reduced performance and prevent full discharges. Inspect terminals periodically for corrosion or wear that could cause failure. Always store the battery fully charged in a cool, dry location (68°F/20°C). Recycle batteries properly — do not dispose of them in regular trash.