Phoenix Contact 2866365 Battery Module – QUINT-BAT/24DC/12AH
The Phoenix Contact QUINT-BAT/24DC/12AH is a robust battery energy storage module designed for use with QUINT DC-UPS systems. Featuring maintenance-free VRLA-AGM battery technology, this 24 V, 12 Ah unit supports high-capacity buffering for industrial automation systems, with parallel connection capability to extend runtime.
Engineered for maximum service life and dependable energy backup, it is ideal for ensuring uninterrupted power to critical control and communication equipment.
Note: This item is no longer in the product range. View replacement product: TRIO-BAT/PB/24DC/12AH (Part No. 1394727)
Technical Specifications
Model: QUINT-BAT/24DC/12AH
Part Number: Phoenix 2866365
Product Type: Battery Module
Nominal Voltage: 24 V DC
Nominal Capacity: 12 Ah
Output Current (max): 50 A
Battery Technology: VRLA (Valve-Regulated Lead-Acid), AGM type
Fuse Rating: 2 × 25 A
Mounting Type: Cabinet mount with 14 mm pin cable lug
Dimensions (W × H × D): 231 × 156 × 110 mm
Weight: Approx. 11.5 kg
Battery Characteristics
- Technology: Sealed Lead Acid (VRLA), Absorbent Glass Mat (AGM)
- Memory Medium: 12 Ah lead battery
- Number of Cells: 2 (internal pack)
- Design Life: 6–9 years @ 20°C ambient
- Shelf Life Before Startup:
- 9 months (20–30°C)
- 6 months (30–40°C)
- Startup/Recharge Requirement: Battery must be charged periodically per manufacturer guidelines.
- IQ Technology: Not supported
- Fast Charging: Yes
Output Performance
- Nominal Output Voltage: 24 V DC
- Max Output Current: 50 A
- Connection in Parallel: Supported (to extend runtime)
- Connection in Series: Not supported
Mechanical & Housing
- Housing Material: Zinc-plated steel
- Connection Type: 14 mm pin cable lug
- Form Factor: Block-style battery pack
- Protection Class: III
- Degree of Protection: IP20
Environmental Conditions
- Operating Temperature Range: 0°C to +40°C
- Storage/Transport Temperature: 0°C to +40°C
- Humidity: Non-condensing (follow storage instructions to preserve lifespan)
Applications
Ideal For:
- Buffering 24 V DC UPS systems (QUINT DC-UPS 20 A / 40 A)
- Ensuring uninterrupted control power in automation systems
- Short-to-medium term load bridging in industrial environments
- Systems requiring stable, rechargeable backup with long service life
Key Features & Benefits
✅ Reliable Backup: 24 V, 12 Ah for extended runtime during outages.
✅ Maintenance-Free: VRLA-AGM sealed battery design.
✅ Compact Steel Housing: Durable metal enclosure for secure cabinet integration.
✅ Parallel Expandability: Extend buffer time with multiple modules.
✅ UPS-Optimized: Compatible with Phoenix Contact QUINT UPS systems.
📦 Available from Drive Outlet Megastore
The Phoenix Contact QUINT-BAT/24DC/12AH offers dependable energy storage for industrial backup applications. Although now discontinued, we recommend the updated replacement part for continued compatibility and improved availability.
Need help selecting a compatible UPS or energy storage upgrade? Contact our backup power specialists here.
Phoenix endurance, Drive Outlet expertise — keep your systems running strong.

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