Overview summary:

The Linkqnet MC12-9 12V 9Ah AGM Deep Cycle Battery is a compact and reliable sealed lead-acid battery ideal for UPS backup, security systems, medical devices, telecoms, and solar PV energy storage. Designed for dependable performance in home, commercial, industrial, and IT environments, this battery supports both standby and cyclic use with a maximum charge current of 2.7A.

Engineered for performance and longevity, it delivers 135A max discharge current, a typical 2.7 kg weight, and reliable cycle life. The battery’s robust ABS flame-retardant case and F2 terminals ensure safe operation in demanding setups. It's compatible with alarm panels, routers, UPS systems, solar inverters, and more.

With a wide operating temperature range from –15 to 50 degrees Celsius, low self-discharge, and durable design, this AGM battery is an excellent choice for South African buyers needing stable, efficient, and maintenance-free backup power.

MC12-9 AGM Battery Specifications

• Nominal voltage: 12V
• Standby Use:  13.5 ~ 13.8V
• Cycle Use:  14.5 ~ 15.0V
• Initial Current:  Less than 2.7A

Suggested Applications for MK Energy MC12-9 Battery

• Warning systems: Alarm panels, sirens, safety beacons
• Medical instruments: Backup power for critical medical equipment
• UPS/EPS systems: Uninterruptible and emergency power supply units
• Portable measuring devices: Meters, testers, and field instruments
• Telecom systems: 4G/5G base stations, routers, and network hardware
• Data centers: Backup for servers and network infrastructure
• Household energy storage: Off-grid and hybrid power systems
• Solar PV storage: Renewable energy backup for home or business
• Emergency lighting: Exit signs, corridor lighting, and emergency circuits
• Security systems: Access control, surveillance, and alarm systems
• Field-deployable electronics: Mobile communication and testing units
• Standby power: General-purpose backup where sealed AGM is preferred

General Specifications

• Nominal Voltage: 12 V
• Nominal Capacity (20hr): 9 Ah (discharged to 10.50 V)
• Capacity at 5hr Rate: 7.65 Ah (to 10.20 V)
• High-Rate Capacity (1 C): 5.7 Ah (to 9.60 V)

Discharge & Performance

• Maximum Discharge Current (5s pulse): 135 A
• Internal Resistance: 14 mΩ (at 1 kHz)
• Typical Weight: 2.7 kg (5.9 lb)

Charging Parameters (at 25 degreesC)

• Cycle Use Voltage: 14.4 – 15.0 V
• Standby (Float) Voltage: 13.5 – 13.8 V
• Temperature Coefficient (Cycle): –5.0 mV/ degreesC/cell
• Temperature Coefficient (Standby): –3.0 mV/ degreesC/cell
• Maximum Charge Current: 2.7 A

Physical & Environmental Specs

• Case Material: ABS (UL94 HB flame-retardant)
• Terminal Type: F2 (Faston tab 6.35 mm)
• Operating Temperature (Charge): –15 degreesC to 40 degreesC
• Operating Temperature (Discharge): –15 degreesC to 50 degreesC
• Storage Temperature: –15 degreesC to 40 degreesC

Shelf Life & Cycle Life

• Self-Discharge @ 20 degreesC:
  • 1 month: 92% capacity
  • 3 months: 90% capacity
  • 6 months: 80% capacity
• Cycle Life: Depth-of-discharge dependent