Stryten Energy’s E-Series PDQ Flooded Lead Calcium batteries provide high-rate, rapid-response power solutions engineered for today’s most demanding environments – including data centers, government institutions, healthcare facilities, utlility plants, and other sectors requiring uninterruptible power supply (UPS) systems. Available in 4-volt and 8-volt multi-cell configurations, the PDQ Series are designed for applications requiring substantial bursts of power over short durations, making them ideal for critical backup operations. Stryten’s E-Series Flooded Calcium PDQ batteries deliver nominal ratings from 1609 to 4217 watts per cell. Their precision-engineered grids and separators are optimized to provide near-instantaneous current flow, ensuring fast and reliable response to sudden load demands. Whether supporting critical IT infrastructure, maintaining uptime in healthcare systems, or powering secure government operations, the E-Series PDQ product line is a trusted solutions for high-power, short-duration needs.
Key Features & Benefits
- Design life of up to 20 years
- Superior terminal post design
- Reduced grid growth and corrosion
- Minimized positive-plate shedding
- Low resistance and high rate performance
- Flame retardant case and cover options
- Enhanced safety and accessibility features
- Easy maintenance and installation
- Fully recyclable
Applications
- Emergency Lighting
- Central Office
- Inside Plant
- Data Center
- UPS
- Government
- Healthcare
- Safety Lighting
- Security Lighting
Stryten 4-PDQ15 Construction Details
- Heavy-duty container (ABS) and (SAN) cover plastics
- Flame retardant POLY-FR option (UL94 V-0 / 28% L.O.I.)
- Flame retardant PVC option (UL94 V-0 / 32% L.O.I. in 2-cell containers)
- Wrapped separator design to minimize positive-plate shedding effects
- Two lead-plated posts with copper insert (one negative and one positive per cell)
- Dual seal (O-ring and flat gasket) design to prevent acid creep into the post area
- Flat plate flooded design with patented lead-calcium-tin-silver alloy
- Electrolyte level lines on all container faces
- Combination flash arrester/fill funnel for each cell
- Electrolyte withdrawal sampling tubes for specific gravity readings
Specification Details for 4-PDQ15 by Stryten Energy
| ATTRIBUTES | DETAILS |
|---|---|
| General Info | |
| Chemistry | Flooded Lead Calcium (PbCa) |
| Voltage | 8V |
| Capacity | 2413WPC @ 15 Min Rate |
| Cells Per Unit | 4 cell |
| Dimensions – Length – Width – Height |
17 inches / 432 mm 14.45 inches / 367 mm 22.88 inches / 581 mm |
| Weight | 580 lbs / 263 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 | 2.23 VPC – 2.33 VPC ± 0.05 VPC |
| Equalizing Charging Voltage | 2.33 VPC – 2.45 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 | 1.250 @ 77°F (25°C) – 1.215 SPG optional |
| Electrolyte | Lead Calcium / Lead Calcium Tin |
| Construction Details | |
| Cell Cover | Acrylonitrile Butadiene Styrene (ABS) Plastic |
| Grid Alloy | Positive:Lead-CalciumNegative:Lead-Calcium |
| Separators | Microporous Material |
| Retainers | Fiberglass Mat |
| Posts | One negative, one positive 1.75 inch x 0.5 inch Post Per Cell |
| Post Seals | Floating “O” Ring – Seal Nut |
| Vents | Stryten Energy “Pre-Vent” Flame Arrester |
| Level Lines | High and Low – All Jar Faces |
| Electrolyte Withdrawal Tibes | 1 Per Cell |
| Inter-Cell Connectors | Lead Plated Copper |
| Positive Plate Dimensions – Height – Width – Thickness |
15.5 inches / 393.7 mm 12.75 inches / 317.5 mm 0.175 inches / 5.00 mm |
| Negative Plate Dimensions – Height – Width – Thickness |
15.5 inches / 393.7 mm 12.75 inches / 317.5 mm 0.130 inches / 3.43 mm |
Certifications & Safety Compliances
- UL Recognized Components
- UL94 V-0
- Flame Retardant Case & Cover
Options & Accessories
- 1.215 Specific Gravity Options Available
- POLY-FR Cover (UL94 V-0) Options Available
- PVC Cover (UL94 V-0) fOptions Available *for 2-PDQ models only*
- Contact a member of the Power Storage Solutions Sales Team for additional information on options and accessories.
Explore Other Models in the Stryten Energy PDQ Series
- 4-PDQ11
- 4-PDQ13
- 4-PDQ17
- 2-PDQ19
- 2-PDQ21
- 2-PDQ23
- 2-PDQ25
- 2-PDQ27












































