High-Capacity Long-Life Storage for Mission-Critical Power Systems

Ensure seamless operational continuity during electrical dropouts with the heavy-duty Santak Castle C12-26Ah 12V UPS Backup Battery. Specially engineered to meet the demanding high-rate discharge performance benchmarks of the Santak Castle series, this industrial-grade cell is the premier choice for professional online UPS systems, telecom backhauls, emergency lighting arrays, and solar standby setups. Utilizing top-tier Valve Regulated Lead-Acid (VRLA) technology blended with a dense Absorbent Glass Mat (AGM) configuration, the Castle C12-26Ah delivers exceptional power retention and rock-solid cyclical stability without the hassle of routine maintenance.

Key Features & Benefits

• Completely Maintenance-Free Operation: Thanks to its advanced VRLA sealed design, internal gas recombination handles up to 99% of emitted oxygen, eliminating the need to top up water levels or check hazardous acid parameters.
• High-Efficiency AGM Grid Integration: Outfitted with thick, ultra-pure lead-calcium-tin alloy plate grids that significantly decrease internal resistance, enabling rapid current delivery and high-rate power output during unexpected power failures.
• Exceptional Cyclic Stability & Low Self-Discharge: Features a remarkably low self-discharge rate (under 3% per month at 25C), ensuring the battery stays highly charged and combat-ready even over extended periods of standby storage.
• Rugged Flame-Retardant ABS Enclosure: Encased in a highly durable, impact-resistant ABS plastic housing that isolates internal active matrices from external mechanical vibrations, shocks, and elevated ambient temperatures.
• Safe, Leak-Proof Design: The spill-proof structure guarantees total protection against structural leaks or acid fumes, making it perfectly safe to install vertically or horizontally inside compact network cabinets.
• Superior Deep Discharge Recovery: Meticulously optimized to handle abrupt, deep power drains and recover its nominal storage capacity smoothly upon grid re-activation, lengthening overall operational service life.

Technical Specifications

Specification	Details
Brand	Santak Electronics (An Eaton Brand)
Series Model	Castle Series C12-26Ah
Battery Technology	Sealed Lead-Acid (SLA) / Valve Regulated Lead-Acid (VRLA) / AGM
Nominal Voltage	12 Volts (12V DC)
Nominal Capacity	26 Ah (at 20-Hour Rate to 1.75V per cell)
Terminal Style	Heavy-Duty Bolt-and-Nut Insert Terminals (Secure High-Current Conductivity)
Design Life Expectancy	Up to 58 Years in standby floating setups (at 25C)
Casing Material	High-Impact, Heavy-Duty ABS Plastic
Dimensions (L x W x H)	6.54 6.89 4.92 inches (166 175 125 mm)
Total Height (With Terminals)	4.92 inches (125 mm)
Approximate Net Weight	Approximately 7.80 kg (17.2 lbs)