Masimo Rad-9 Pulse Oximeter Compatible Medical Replacement Battery 2.32 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Masimo Rad-9 Pulse Oximeter Compatible Medical Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
Battery Care Tips
🔹 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.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Volts & Amps
12 Volts | 2.9 AH
Terminal Type
F1
SP12-2.9 Replacement Battery for Masimo Rad-9 Pulse Oximeter — SP12-2.9 (Masimo Rad-9)
Restore the runtime of your Masimo Rad-9 Pulse Oximeter with this factory-fresh SP12-2.9 replacement battery. Designed for full compatibility with the original Masimo Rad-9 battery, this compact, reliable battery provides consistent performance and the peace of mind required in clinical and field settings where accurate monitoring is essential.
Key Specifications
- Model / Compatible Device: SP12-2.9 — Masimo Rad-9 Pulse Oximeter
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 2.9 Ah (Amp-hours)
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-free, spill proof construction
- Case: Rugged plastic case and cover
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Performance: Performance Guaranteed
- Terminal: F1 (as specified)
Benefits
This SP12-2.9 replacement battery is a long-lasting battery solution built with AGM technology to ensure leak-free, vibration-resistant operation. Its maintenance-free, spill-proof design makes it ideal for clinical environments and portable monitoring devices. The rugged plastic case protects internal components while keeping the battery lightweight and durable for frequent handling and transport.
As a high-performance battery optimized for medical devices, it provides steady discharge characteristics and reliable recharge cycles — essential for accurate pulse oximetry and continuous monitoring. In addition to medical devices, the SP12-2.9 is suitable for typical applications that require dependable backup power, such as UPS units, emergency power systems, and portable tools where compact, reliable power is needed.
UL recognition, CE certification, and a 1 Year Warranty ensure that this replacement battery meets safety and quality standards expected in healthcare settings. The SP12-2.9 offers a cost-effective way to restore the functionality of your Masimo Rad-9 while maintaining high standards of reliability and performance.
Order your SP12-2.9 replacement battery for the Masimo Rad-9 Pulse Oximeter today — secure a high-performance, long-lasting battery with fast shipping and expert support.
Technical Specifications
Product Highlights
- Brand Replacement : Masimo Rad-9 Pulse
- Manufacturer: SigmasTek
- Product Type: Medical Equipment Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.




