Stryten Energy’s E-Series NCN Flooded Lead Calcium batteries provide deliver trusted, high-integrity standby power solutions designed for the most critical and regulated environments – including utilities, petrochemical operations, and deep cycle applications. NCN batteries are qualified to IEEE 535 standards and capacity tested in accordance with IEEE 450, making them a proven choice for nuclear power generating stations and other high-stakes applications. Stryten’s E-Series Flooded Calcium NCN batteries range from 688 to 2552 amp-hours and the advanced 24V, 36V, 48V, 72V, and 80V Multi-Voltage Modular design allows charger to grow with your fleet. More modules can be added as your power needs grow, and if one module fails, others continue operation. Ideal for use in emergency, safety, and security lighting, central and outside plant infrastructure, renewable energy systems, switchgear, transformer substations, oil and gas environments, and general purpose deep cycle applications, the NCN Series delivers long-lasting, consistent power where failure is not an option.
Key Features & Benefits
- Design life of up to 20 years
- Superior terminal post design
- Qualified to IEEE 535
- Capacity tested to IEEE 450
- Flame retardant case and cover options
- Enhanced safety and accessibility features
- Easy maintenance and installation
- Scaleable, multi-voltage modular design
- Fully recyclable
Applications
- Emergency Lighting
- Central Office
- Inside Plant
- Oil & Gas
- Outside Plant
- Renewable Energy
- Utilities & Switchgear
- Transformer Substations
- Substations
- Safety Lighting
- Security Lighting
- Deep Cycle
- General Purposes
Stryten NCN-21 Construction Details
- Heavy-duty container (ABS) and (SAN) cover plastics offered in single-cell configurations
- Four 1.0 inch square lead posts per cell
- Dual seal (O-ring and flat gasket) design to prevent acid creep into the post area
- Flat plate flooded design with lead-calcium positive alloy
- Electrolyte level lines on all container faces
- Combination flash arrester/fill funnel for each cell
- Electrolyte withdrawal sampling tubes for specific gravity readings
- Stackable with shelf, stand, and wall mounting options
Specification Details for NCN-21 by Stryten Energy
| ATTRIBUTES | DETAILS |
|---|---|
| General Info | |
| Chemistry | Flooded Lead Calcium (PbCa) |
| Voltage | 2V |
| Capacity | 1496Ah @ 8 Hr Rate |
| Cells Per Unit | 1 cell |
| Dimensions – Length – Width – Height |
9.25 inches / 235 mm 14.55 inches / 368 mm 22.50 inches / 572 mm |
| Weight | 313 lbs / 142 kgs |
| Container Type | Styrene Acrylonitrile (SAN) Plastic |
| Terminal Type | Flag – Dual 1/4″ Hole |
| Terminal Material | Lead-Calcium |
| Design Life | 20 Years |
| Warranty | 1 Year Full 20 Pro Rata |
| Electrical Specifications & Performance Characteristics | |
| Float Charging Voltage | 2.17 VPC – 2.25 VPC ± 0.05 VPC |
| Equalizing Charging Voltage | 2.24 VPC – 2.39 VPC ± 0.05 VPC |
| Internal Resistance | Approx. 5 mΩ |
| Operating Temperature Ranges | Nominal: 60°F (16°C) – 90°F (32°C)Charge: 70°F (21°C) – 90°F (32°C)Storage: 60°F (16°C) – 90°F (32°C) |
| Specific Gravity | 1.215 @ 77°F (25°C) |
| Electrolyte | Lead Calcium / Lead Calcium Tin |
| Construction Details | |
| Cell Cover | Acrylonitrile Butadiene Styrene (ABS) Plastic |
| Grid Alloy | Positive:Lead-Calcium-TinNegative:Lead-Calcium |
| Separators | Microporous Rubber Material |
| Retainers | Fiberglass Mat |
| Posts | Four 1.0 inch / 25.4 mm Square |
| Post Seals | Floating “O” Ring – Seal Nut |
| Vents | Stryten Energy “Pre-Vent” Flame Arrester |
| Level Lines | High and Low – All Jar Faces |
| Electrolyte Height Above Plates | 2.66 inches / 67.6 mm |
| Electrolyte Withdrawal Tubes | 2 Per Cell |
| Sediment Space | 1.18 inches / 30.0 mm |
| Inter-Cell Connectors | Lead Plated Copper |
| Positive Plate Dimensions – Height – Width – Thickness |
15 inches / 381 mm 12.5 inches / 317.5 mm 0.325 inches / 8.26 mm |
| Negative Plate Dimensions – Height – Width – Thickness |
15 inches / 381 mm 12.5 inches / 317.5 mm 0.220 inches / 5.59 mm |
Certifications & Safety Compliances
- UL Recognized Components
- UL94 V-0
- Flame Retardant Case & Cover
- IEEE 450
- IEEE 535
- Class 1E Certified for Nuclear Applications
Options & Accessories
- Stackable with shelf, stand, and wall mounting options
- Contact a member of the Power Storage Solutions Sales Team for additional information on options and accessories.
Explore Other Models in the Stryten Energy NCN Series
- NCN-09
- NCN-11
- NCN-13
- NCN-15
- NCN-17
- NCN-19
- NCN-23
- NCN-25
- NCN-27
- NCN-29
- NCN-31
- NCN-33
- NCN-35












































