About This

• 【Precise Replacement Size】 NPP HR1221W 12V 5Ah sealed lead acid battery (21W per cell, 126W total) is a compatible replacement for most 12V 4.5Ah~5.5Ah models, including UB1250, CB1250, and 485LM LiftMaster gate opener batteries. Compact dimensions 3.98"(L) × 2.76"(W) × 4.21"(H) 3.57 Ibs with F2 terminals ensure direct fit and easy installation.
• 【High-Rate Discharge for Critical Backup】 Engineered with enhanced plate design to deliver 21 Watts per cell (126W total) — 40% higher power density than standard 12V 5Ah batteries. Provides instant, stable voltage output for UPS, alarm panels, and telecom systems under short-duration, high-load discharge conditions.
• 【Flame Retardant AGM Construction】 Built with premium lead-calcium grids and AGM absorbent separators inside a UL94-V0 flame-retardant ABS case. Non-spillable VRLA design supports maintenance-free operation in any orientation, ensuring safe and reliable backup in residential and commercial setups.
• 【Reliable Backup for Security & Control Devices】 Excellent compatibility with gate openers, garage door systems, alarm panels, emergency lights, and security power boxes. Provides stable float charge performance (13.5–13.8V) and 5-year floating service life.
• 【Certified Quality & Brand Support】 Manufactured by NPP Power, UL, CE, IEC, ISO14001, ISO19001, OHSAS18000, TLC certified, trusted globally for UPS and alarm power solutions. Each unit is 100% tested for voltage, internal resistance, and capacity before shipping for guaranteed reliability.

Overview

• Number of Batteries : 1 12V batteries required.
• Brand : NPP
• Battery Cell Composition : Sealed Lead Acid
• Battery Capacity : 5 Amp Hours
• Recommended Uses For Product : Indoor/Outdoor