HR1221WF2 AGM Battery 12V 5.1Ah

CSB Battery HR1221WF2 AGM Battery 12V 5.1Ah

The CSB Battery HR1221WF2 is a compact 12V 5.1Ah sealed AGM battery engineered for high-rate standby and backup power applications. Its absorbed glass mat (AGM) construction delivers maintenance-free, leak-proof operation — mountable in any orientation with no venting or upkeep required. UL certified and backed by a 12-month warranty, the HR1221WF2 is a reliable drop-in solution for alarm systems, emergency lighting, UPS units, and small electronic devices.

Key Features

• 12V 5.1Ah AGM — sealed, maintenance-free standby power in a compact form factor
• Valve-regulated sealed construction — leak-proof, spill-proof, mountable in any orientation
• AGM technology — superior vibration resistance and longer shelf life vs. flooded lead-acid
• UL Certified — meets regulatory safety standards
• Low self-discharge — retains charge during storage for reliable standby readiness
• Maintenance-free — no watering, no venting, no upkeep required
• 12 Month Warranty

Specifications

• Voltage: 12V
• Capacity: 5.1Ah (20hr)
• Chemistry: Sealed AGM (VRLA)
• Part/Model Number: HR1221WF2
• Terminal Size: M5
• Height: 4.0" / 101.8mm (Total: 4.2" / 106.1mm)
• Width: 2.8" / 70mm
• Length: 3.5" / 90mm
• Weight: 1.8 kg
• Colour: Black
• Certifications: UL
• Warranty: 12 months
• Brand: CSB Battery

Ideal For

• Security and alarm systems
• Emergency and exit lighting
• UPS and backup power units
• Small electronics and medical devices
• Any 12V 5Ah sealed battery replacement

Ships from Thunder Battery — Canada's trusted energy storage dealer.