01573 Replacement Battery 7S2P 25.2V 3000mAh Li-ion for Stephan Sophie Ventilator

Product Specification

• Battery Model: 01573
• Voltage: 25.2V (7S configuration)
• Capacity: 3000mAh (75.6Wh)
• Battery Type: Li-ion (Lithium-Ion)
• Cell Configuration: 7S2P (14 premium 18650 cells)
• Cell Brand: Sony / Panasonic INR-18650PB2
• Color: Black
• Dimensions: 165 × 32.5 × 60 mm
• Weight: 1100 g (2.4 lbs)
• Cycle Life: Up to 800 charge/discharge cycles
• Charging Voltage: 25.2V (CC/CV mode)
• Charging Current: 2A (standard charge)
• Storage Temperature: 0 to 45 °C
• Condition: Replacement Battery (100% Brand New, 1-year warranty!)

Replace Part Numbers

• 01573
• INR-18650PB2 7S2P

Compatible Device Models

• Stephan Sophie Electric-Driven Ventilator
• Stephan Sophie Transport Ventilator
• Stephan Respirator Series (01573-compatible)

Built-in Safety Protection

• Overcharge Protection: 7S BMS limits charge to 29.4V max to protect all 14 cells from overvoltage
• Overdischarge Protection: Cuts off at 21.0V to prevent permanent cell damage during deep discharge
• Overheat Protection: Multi-point thermal sensing across the 14-cell pack — critical for continuous ventilator operation
• Overcurrent Protection: Limits discharge to rated maximum to protect both vent electronics and battery
• Short Circuit Protection: Instant cut-off across all 7 series branches to prevent cascade failure
• Cell Balancing: Active balancing across 7 series groups ensures even charge/discharge and maximum pack lifespan

Engineered for Life-Support Equipment — Stephan Sophie Ventilator

• Stephan — German Medical Excellence: Stephan GmbH is a renowned German manufacturer of respiratory care and ventilation equipment trusted by ICUs, NICU units, and emergency transport teams worldwide. The Sophie ventilator platform is deployed in hospitals across Europe, Asia, and the Middle East.
• 14-Cell 7S2P Architecture: Not a simple battery — this is a precision-engineered 14-cell pack. 7 series groups deliver 25.2V for the ventilator's blower motor and control electronics; 2 parallel groups provide 3000mAh for extended runtime. Every cell is individually monitored by the BMS.
• Sony/Panasonic 18650PB2 Cells: These are industrial-grade high-drain cells designed for medical and power tool applications — not consumer-grade laptop cells. They maintain >90% capacity after 500 cycles and handle the sustained 2A discharge that ventilator motors demand.
• 75.6Wh Capacity: Provides 4-8 hours of continuous ventilation depending on settings — critical for intra-hospital transport where power outlets are unavailable.
• 1100g — Built for Reliability, Not Portability: Every gram of this battery is engineered for safety. The heavy-duty casing, multi-layer cell insulation, and redundant BMS circuitry are designed for one purpose: zero-failure operation in life-critical scenarios.

Installation & Maintenance Guidelines

• Initial Conditioning: Perform 2-3 full charge/discharge cycles before first clinical deployment to balance all 14 cells and calibrate the BMS fuel gauge
• Proper Storage: If not in use for >30 days, store at 40-60% charge (approximately 23.5-24.5V) in a cool, dry environment. Never store fully discharged — this can permanently damage the 14-cell pack
• Monthly Maintenance: For batteries in rotation, run a complete charge/discharge cycle at least once every 2 months to maintain cell balance and prevent capacity fade
• Connector Inspection: Before each installation, visually inspect the connector pins for corrosion or damage. A loose connection can cause intermittent power — unacceptable in ventilator applications
• Replacement Schedule: For batteries in daily clinical use, replace every 18-24 months or when runtime drops below 70% of original capacity (approximately 2,100mAh remaining)

Frequently Asked Questions

• Q: Is this battery compatible with all Stephan Sophie models?
  A: Yes. This battery (PN: 01573) is the standard replacement for the Stephan Sophie electric-driven ventilator platform. It is compatible with all Sophie transport and ICU ventilator configurations that use the 7S2P INR-18650PB2 battery system.
• Q: Can I use a third-party charger?
  A: No. The Sophie ventilator has a built-in charging circuit. Always charge through the ventilator's AC power connection — third-party chargers bypass the BMS and can cause uneven cell charging across the 7-series groups.
• Q: How do I verify this is a genuine 01573 replacement?
  A: Check the label for the 01573 part number and 25.2V / 3000mAh rating. Inspect the connector — it should match the Sophie ventilator's battery bay without force. All our batteries include a QC test report with individual cell group voltages.
• Q: What is the expected runtime on a full charge?
  A: Runtime varies by ventilator settings (tidal volume, respiratory rate, PEEP, FiO2). Expect 4-8 hours for typical transport settings and 2-4 hours for ICU-level support with higher flow rates.

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