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SigmasTek  |  SKU: BW-10427

Medical Research Lab 550ST Defibrillator High Performance Replacement Battery Set 11.61 lb

18% off
New arrival
Sale price $97.99 USD Regular price $119.99
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Factory fresh Medical Research Lab 550ST batteries for reliable performance
Includes 5 high-quality SP12-2.3 (12V 2.3AH) batteries per set
Maintenance-free Absorbent Glass Mat (AGM) technology for durability
Spill-proof design with rugged plastic case and cover for safety
U.L. Recognized, CE Certified, and backed by a 1-year warranty
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🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

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Volts & Amps

12 Volts | 2.3 Ah

Terminal Type

F1

Medical Research Lab 550ST Defibrillator Battery Set — Compatible Model: 550ST (SP12-2.3)

Replace your worn or aging cells with this factory-fresh Medical Research Lab 550ST Defibrillator medical battery set — engineered for compatibility, consistent performance, and clinical reliability. Designed to meet the demanding needs of life-saving equipment, this replacement battery set delivers dependable power and peace of mind. Each set includes five SP12-2.3 (12V 2.3AH) batteries that are built using advanced Absorbent Glass Mat (AGM) technology for enhanced durability and stable output during critical use.

Key Specifications

  • Compatible Model: Medical Research Lab 550ST Defibrillator
  • Replacement Model / Cell: SP12-2.3
  • Voltage: 12 Volts
  • Capacity: 2.3 Ah (per battery)
  • Quantity: 5 batteries included
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free
  • Construction: Spill Proof
  • Case: Rugged Plastic Case and Cover
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Replacement Brand: SigmasTek
  • Terminal: F1

Benefits

Engineered as a high-performance battery solution for sensitive medical equipment, this long-lasting battery set combines AGM reliability with a maintenance-free design to minimize downtime and service needs. The spill-proof construction and rugged plastic casing provide extra protection against vibration and handling, delivering durable performance in clinical and transport environments. Because these are factory-fresh cells with U.L. and CE recognition, you can expect consistent charge acceptance, stable discharge curves, and predictable end-of-life behavior — all essential attributes for defibrillators and emergency response systems.

As a replacement battery for the 550ST, these cells are ideal where uninterrupted, reliable power matters most: emergency power packs, standby systems, transportable medical devices, and other mission-critical applications. The set’s small footprint and dependable chemistry also make it suitable for compact UPS modules and portable power tools that require compact, safe batteries. If you’re looking for a high-performance battery that emphasizes safety, longevity, and compatibility, this SP12-2.3 set is purpose-built to perform.

Upgrade your Medical Research Lab 550ST with this trusted, long-lasting battery set today. Order now to secure reliable, certified power and enjoy fast shipping and a 1-year warranty—buy your replacement battery with confidence.

Technical Specifications

Voltage12 Volts
Amp Hours2.3 Ah
Terminal TypeF1
Length (in.)7.0
Width (in.)1.38
Height (in.)2.36
Weight (lb.)11.6

Product Highlights

  • Brand Replacement : Medical Research Lab
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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