Device Type: Sealed Maintenance-Free (SMF) VRLA / AGM Rechargeable Battery
Part Number/SKU: 12AL9MF
Brand: Shield (AL Series)
Nominal Voltage: 12V DC
Rated Capacity: 9Ah @ C20 rate (20-hour, to 1.75V/cell at 27°C)
Battery Technology: Valve-Regulated Lead-Acid (VRLA), AGM (Absorbent Glass Mat), Maintenance-Free
Design Features:- Non-Spillable Sealed Design – Safe in any orientation without leakage risk
- Maintenance-Free – No electrolyte level checks or water refilling required
- Low Self-Discharge – <1% per week at 27°C (per Amaron equivalent)
- Long Shelf Life – Can be stored for extended periods (recommended max storage: 3 months at 27°C)
- High Design Life – Robust construction with lead-calcium grids
Physical Specifications:- Dimensions (L × W × H): 151 mm × 65 mm × 100 mm (±2mm) (per Amaron equivalent)
- Weight: Approx. 2.7 kg (per Amaron equivalent); Supplier listing cites 5 kg (may include packaging)
- Terminal Type: F2 (Faston Tab)
- Case Material: Acrylonitrile Butadiene Styrene (ABS)
Performance & Reliability:- Internal Resistance: ≤10 mΩ (at 25°C) (per DnK listing); Amaron equivalent: ~14 mΩ at 27°C
- Max Discharge Current (5 sec): 135A (per Amaron equivalent)
- AH Efficiency: Above 95%
- WH Efficiency: Above 85%
- Self-Discharge Rate: <1% per week at 27°C
Charging Parameters (at 27°C):- Standby Use (Float): 13.5–13.8V per module
- Cyclic Charging Voltage: 14.4–15.0V per cell
- Charging Current Limit: 0.90A minimum to 2.25A maximum
- Temperature Compensation: Standby: −18mV/°C/battery; Cyclic: −30mV/°C/battery
Operating Temperature Range:- Nominal: 27°C ± 3°C
- Recommended Storage: Covered area at 27°C
Compliance: Conforms to JIS 8702C International Standard
Warranty: 12 Months Limited Warranty Against Manufacturers Defects (per Critical Power listing)
Key Specs: Shield 12AL9MF, 12V 9Ah Sealed Maintenance-Free VRLA/AGM Battery, Non-Spillable Sealed Design, Maintenance-Free, Low Self-Discharge (<1%/Week), Long Shelf Life, High Design Life, Internal Resistance ≤10mΩ, F2 Faston Terminals, ABS Case, 151×65×100mm, ~2.7kg, JIS 8702C Compliant, 12-Month Warranty
Usage: Uninterruptible Power Supplies (UPS), Backup Power Systems, Security & Alarm Systems, Solar Energy Storage, Medical Equipment, Emergency Lighting, Telecommunication Equipment, and Other Critical Standby Power Applications
