AJC Replacement for Douglas Guardian DG12-45 12V 55Ah UPS Battery (Sealed Lead Acid AGM, NB Terminals)

Product overview: AJC® offers this direct-fit replacement for the Douglas Guardian DG12-45 UPS battery. It delivers 12V nominal voltage with a 55Ah capacity in a sealed lead acid (AGM) construction and uses NB terminals for a straightforward swap. Key specifications: - Voltage: 12V (12 Volts) - Capacity: 55Ah - Terminals: NB - Chemistry: Sealed Lead Acid (AGM) - Length: 9.02 in - Width: 5.43 in - Height: 8.27 in - Weight: 40.1 lbs Why choose this AJC replacement: High-quality yet economical, this battery is manufactured as an exact OEM-style replacement to ensure a precise fit for thousands of compatible devices. Millions of AJC batteries have been sold worldwide, and the unit includes a UL recognized component. Purchases are supported by easy 30-day returns and a 12-month warranty. Care and storage recommendations: Recharge the battery after each use to avoid loss of performance and do not allow full discharges. Inspect the terminals periodically for corrosion or wear that could lead to failure. Store the battery fully charged in a cool, dry location (68°F/20°C). Recycle used batteries—do not dispose of them in regular trash. Disclaimer: This product is not affiliated with or authorized by Douglas Guardian.