Life-Saving Power at Exceptional Value. As battery specialists since 2010, we deliver FDA-approved emergency medical batteries with guaranteed compatibility. The Philips M3863A replacement battery provides 12V 4.2Ah lithium manganese power with 5-year shelf life and maintenance-free operation. This exact OEM replacement for FR2/FR2+ AEDs features clearly specified dimensions, 300-shock capacity, and proven reliability. With 12 hours of operational time and trusted performance, get critical AED power at competitive pricing.

Why Emergency Teams Choose the M3863A Battery: FDA-approved lithium manganese technology for reliable defibrillation. 5-year shelf life with zero maintenance requirements. Delivers up to 300 shocks or 12 hours continuous operation. Exact fit for Philips FR2 and FR2+ AED models. Non-rechargeable design eliminates charging complexity - competitive pricing from battery specialists since 2010.

Quick Specifications

Replaces: Philips OEM #M3863A for FR2/FR2+ AEDs

Specifications: 12V, 4.2Ah, Lithium Manganese

Weight: 1.2 lbs (0.54 kg)

Shelf Life: 5 years at proper storage temperatures

Compatibility: Philips HeartStart FR2, FR2+ defibrillators

• • Philips M3863A AED Battery Pack
• • Non-Rechargeable Lithium Manganese Technology
• • Direct Replacement for FR2/FR2+ Models
• • Installation Instructions

5-Year Shelf Life: When stored at proper temperatures, this battery maintains readiness for up to 5 years. Self-discharge occurs gradually over time, reducing available capacity when installed.

3-Year Installed Life: Once installed in your Philips FR2 or FR2+ AED, expect approximately 3 years of service life depending on usage frequency and environmental conditions.

Capacity Retention: After 4 years of standby operation with no patient use, approximately 35% of the battery's useful life remains, ensuring emergency readiness even after extended standby periods.

Exact Replacement For:

• Philips HeartStart FR2 AED: All versions and configurations
• Philips HeartStart FR2+ AED: All models
• OEM Part Number: M3863A

Common Installation Locations:

• Emergency Medical Services (EMS) vehicles
• Corporate workplace AED programs
• Schools and educational facilities
• Public access defibrillation sites
• Healthcare facilities and clinics
• Sports and recreational venues

Q: What battery replaces Philips M3863A?
A: This exact replacement battery replaces Philips OEM part #M3863A with identical 12V 4.2Ah lithium manganese specifications for FR2 and FR2+ AED models.

Q: Which battery fits the Philips HeartStart FR2 AED?
A: The M3863A battery is specifically designed for Philips HeartStart FR2 and FR2+ defibrillators, ensuring guaranteed compatibility and proper self-test functionality.

Q: How long does the Philips M3863A battery last in the AED?
A: Once installed, the M3863A battery typically lasts up to 3 years depending on usage. It provides up to 300 shocks or 12 hours of continuous "ON" time when new.

Q: What are the exact dimensions of the M3863A battery?
A: The M3863A battery weighs 1.2 lbs (0.54 kg) and is designed to fit perfectly in the Philips FR2/FR2+ battery compartment. Contact our specialists for complete dimensional specifications.

Q: Can I recharge the Philips M3863A battery?
A: No, the M3863A is a non-rechargeable lithium manganese battery. This maintenance-free design eliminates charging requirements but cannot be recharged once depleted.

AED Battery Specialists Since 2010

With over a decade of experience providing AED and medical batteries, we understand the critical importance of reliable emergency power. Our commitment to FDA-approved batteries and exact OEM replacements ensures your life-saving equipment performs when every second counts.

Expert Support & Resources

Not sure if the M3863A is right for your Philips AED? Our battery specialists are available toll-free at 1-877-775-4381 or through our online contact form. We also provide comprehensive battery resources and guides to help you maintain your emergency equipment. Explore our full range of emergency power solutions for complete preparedness.

Ensure Your Philips AED Is Always Ready

The Philips M3863A battery delivers FDA-approved reliability with 5-year shelf life and maintenance-free operation. With competitive pricing on this exact OEM replacement, guaranteed compatibility for FR2/FR2+ AEDs, and 300-shock capacity for critical emergencies, you're investing in proven life-saving power. As battery specialists since 2010, we provide clearly specified medical-grade batteries with the performance emergency teams trust.

Order Your M3863A Battery Today

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Browse more backup power solutions and explore our selection of medical equipment batteries. For AED mounting solutions, visit our AED mount accessories page.