Simplex 20821.88 Replacement Battery — Compatible with Simplex 20821.88 The Simplex 20821.88 replacement battery is a purpose-built 12V 18AH SLA pack with NB terminal compatibility, engineered for dependable performance and longevity. This high-performance battery offers high discharge capability, a broad operating temperature range, and a sealed VRLA design for safe, maintenance-free operation. When your device lists Simplex 20821.88, this replacement battery provides the consistent power and fit required to restore full functionality. Key Specifications Brand / Model: Simplex 20821.88 replacement battery Chemistry: Valve-Regulated Lead Acid (VRLA) Sealed Battery Technology Certification: UL (Underwriters Laboratories) certified Voltage: 12 V Amp Hours: 18 AH Terminal Type: NB Weight: 12.65 Lbs Dimensions: Length 7.13 In, Width 3 In, Height 6.59 In Package: Package contains 1 battery Warranty: 1-year Warranty Shipping: ETD 3 Business Days; Shipping Methods – UPS Ground and USPS; we ship in 1 business day for all in-stock items Benefits Durability: Constructed with sealed VRLA technology to deliver maintenance-free reliability and resistance to vibration and shock. Long Life: The Simplex 20821.88 replacement battery offers a long expected service life, making it a cost-effective solution for routine replacements and preventative maintenance. High Performance: Designed for strong discharge and steady voltage output under load, this high-performance battery supports demanding backup and standby duties. Safe and Flexible: VRLA design permits safe operation in different orientations and in proximity to sensitive equipment, while UL certification ensures industry-standard safety. Common Uses: Ideal for UPS backup systems, emergency lighting, security and fire alarm systems, telecommunication equipment, medical instruments, and portable tools that require a reliable 12V 18AH NB terminal battery. OEM Match: Meets or exceeds original manufacturer specifications to ensure a seamless replacement and reduce installation time. Ready to replace your old battery with a proven, long-lasting battery? Order the Simplex 20821.88 replacement battery today for fast dispatch, UL-certified safety, and a full 1-year warranty. Purchase now to keep your critical systems powered.
