Defibrillator Comparison: Lifepak 20E VS Zoll R Series
Defibrillator Comparison: Lifepak 20E VS Zoll R Series

Defibrillators such as the Lifepak 20e and the Zoll R Series are amongst the highly sought-after defibrillation systems which offer a variety of unique features. Defibrillators such as these two can be found in numerous public spaces ranging from hospital ICU units, emergency rooms, medical clinics, community centers, businesses, and schools.

However, there is more that goes into properly using a defibrillator. Understanding how defibrillators work, acquiring proper training, and knowing what important tools to look for when purchasing defibrillators are critical to saving a life during an emergency—including unexpected circumstances.

To learn more about our two most popular defibrillators—Lifepak 20e and the Zoll R Series—continue reading further.


In summary, a defibrillator is a medical device that delivers an electrical shock through the heart to correct or prevent arrhythmia. This overall process is defibrillation. The purpose of this shock is to restore a heart to its normal heartbeat.

Before doing so, sticky pads with sensors, called electrodes, are attached to the chest of someone who is having a cardiac arrest. The electrodes send information about the person’s heart rhythm to a computer in the AED (Automated External Defibrillator). The computer analyzes the heart rhythm to find out whether an electric shock is needed.


Medtronic Physio-Control Lifepak 20e Defibrillator
Zoll R Series BLS Defibrillator
SpecificationsLifepak 20eZoll R Series
Dimensions (HxWxD)8.4" x 10.3" x 10.3" (21.3 cm x 26.2 cm x 26.2 cm)8.2" x 10.5" x 12.5" (20.8 cm x 26.7 cm x 31.7 cm)
Weight (Fully featured with cables and paddles)14.68 lbs (6.66 kg)15.2 lbs (6.9 kg)
Modes of Operation
  • AED
  • Manual defibrillation
  • Pacing
  • Monitoring
  • AED
  • Manual defibrillation
  • Pacing/Cardioversion
  • Monitoring
  • Pediatric defibrillation
Pacing Rate40 to 170 ppm30 to 180 ppm
Self testingYesYes
WaveformsBiphasic truncated exponentialRectilinear Biphasic
Energy Selections2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, 70, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 360 joules1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, 75, 100, 120, 150, 200 joules
Energy Charge Time
  • To 200J <5 seconds

  • To 360J <7 seconds
  • To 200J <7 seconds
  • ECG monitoring
  • SpO2
  • CO2
  • ECG monitoring
  • SpO2
  • EtCO2
  • NIBP
ECG Monitoring - Patient Connection3-lead cable, 5-lead cable3-lead cable, 5-lead cable
AC Power
  • 90–132 VAC 50/60Hz
  • 198–264 VAC 50/60 Hz
  • 100-120 Vrms, 50/60 Hz
  • 220-240 Vrms, 50 Hz
BatteryYes - Lithium-ion internal battery backupYes - Lithium-ion internal battery backup
Battery Charge Time4 hour or less4 hour or less
Display TypeLCD (Liquid crystal display)LCD (Liquid crystal display)
Display Size (Diagonally)5.7" (14.4 cm)6.5" (16.5 cm)
Printer Paper Size50 mm90 mm
Printer Speed25 mm/sec25 mm/sec
Printer Delay8 Seconds6 Seconds
CPR Monitoring
  • CPR Metronome
  • Compression
    depth: 0.75 to 3 inches ±0.25 inches
    (1.9 to 7.6 cm ±0.6 cm)
  • Compression rate: 50 to 150 compressions per minute
Patient Data TransmissionYes - Wifi, IrDAYes - Wifi, USB, Compact flash card


Medtronic Physio-Control Lifepak 20e Defibrillator
Medtronic Physio-Control Lifepak 20e Defibrillator

The Physio-Control Lifepak 20e is clinically the most advanced defibrillator in the Physio-Control Lifepak line. This Lifepak 20e defibrillator and monitor is highly intuitive for first responders and combines AED and manual capabilities so ACLS-trained clinicians can quickly and easily deliver advanced therapeutic care. The Lifepak is simple yet powerful with special features like capnography, CPR metronome, and the ability to remotely send data to CODE-STAT data review.

Designed for crash cart use, the Physio-Control Lifepak 20e meets all your defibrillator/monitor needs in a compact and affordable package. The Lifepak is simple yet powerful with special features like capnography, CPR metronome, and the ability to remotely send data to CODE-STAT data review.

  • Manual and automatic defibrillation functionality
  • 3 and 5 ECG monitoring capabilities
  • Intuitive door system for both this FDA Approved AED and manual use
  • Built-in AC Power
  • Rechargeable internal lithium-ion battery
  • Compact and lightweight for easy carrying and versatile use


A common question we receive regarding the Lifepak 20e is where the battery goes. The battery door is located on the bottom side of the Lifepak 20e defibrillator. To access the battery, use a small flat-head screwdriver to open the compartment. The Lifepak 20e uses a 12V 6.0Ah Li-ion battery which can be purchased from our medical equipment parts department. You can find the Lifepak 20e battery here. These lithium-ion batteries are lightweight and require a constant current charger that is supplied from the A03 Power Module. The battery on the 20e is used when AC power is no longer available.


Zoll R Series Defibrillator
Zoll R Series BLS Defibrillator

The Zoll R Series is known to introduce simple, smart, and ready defibrillation to hospitals and other medical facilities. The two Zoll R models (R Series ALS and R Series BLS) can make code-readiness possible for every hospital department, with advanced cost-effective solutions for resuscitation. Both models are available with pacing, end-tidal CO2, noninvasive blood pressure, and SPO2 monitoring capabilities.

Additionally, the Real CPR Help technology allows the R Series to provide audio and visual feedback that guides rescuers to consistently deliver high-quality CPR.

  • CPR Dashboard featuring Real CPR Help
  • See-Thru CPR technology
  • OneStep cable compatible with OneStep electrodes
  • Automated daily self-test to ensure the device is code-ready
  • Compact flash compatible cord slot


Soma Tech Intl offers the Lifepak 20e and Zoll R Series defibrillators up to 50% below OEM prices along with the same service and warranty as new ones. Soma Tech supplies medical equipment from top manufacturers. Furthermore, if you would like to request either of the two featured defibrillators, you can contact us at 1-800-GET-SOMA or email us at [email protected]. One of our knowledgeable sales representatives can assist you with any further inquiries you may have.


Cardiac arrest can happen anywhere in the hospital. In the emergency department. In the recovery room. As a medical professional, you’re on the frontline of medical care—and need cutting-edge medical devices you can depend on. Both the Lifepak 20e and the Zoll R Series have their advantages depending on your medical facility’s needs.

Have you ever had to defibrillate someone before? Have you ever used either the Lifepak 20e or the Zoll R Series? What about any other defibrillator, like the Lifepak 15? Are you most familiar with another brand? Are there any specific features that you look for within the ideal defibrillator? Feel free to leave a comment below!

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