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  2. Lifepak - Wikipedia

    en.wikipedia.org/wiki/Lifepak

    Physio-Control publicly demonstrated its first Lifepak branded defibrillator, Lifepak 33, in November 1968 and began commercial sale of the unit the next year in 1969. [5] [6] The Lifepak 33 was the lightest defibrillator available at launch, weighing 34 pounds. The defibrillator was referred to by media as a "90-day wonder" due to the entirety ...

  3. Physio-Control - Wikipedia

    en.wikipedia.org/wiki/Physio-Control

    The idea for the first Lifepak came after Physio-Control learned that Zenith Corp. was developing a 56-pound monitor/defibrillator that was bulky, however portable. With a total weight of 34 pounds, the Lifepak 33 was the lightest defibrillator available at the time.

  4. Defibrillation - Wikipedia

    en.wikipedia.org/wiki/Defibrillation

    A major breakthrough was the introduction of portable defibrillators used out of the hospital. Already Peleška's Prema defibrillator was designed to be more portable than original Gurvich's model. In Soviet Union, a portable version of Gurvich's defibrillator, model ДПА-3 (DPA-3), was reported in 1959. [42]

  5. Automated external defibrillator - Wikipedia

    en.wikipedia.org/wiki/Automated_external...

    An automated external defibrillator or automatic electronic defibrillator (AED) is a portable electronic device that automatically diagnoses the life-threatening cardiac arrhythmias of ventricular fibrillation (VF) and pulseless ventricular tachycardia, [1] and is able to treat them through defibrillation, the application of electricity which stops the arrhythmia, allowing the heart to re ...

  6. Split-charge diode - Wikipedia

    en.wikipedia.org/wiki/Split-charge_diode

    A split-charge diode is an electronic device used to enable simultaneous charging of multiple batteries from one power source. The device prevents current from flowing from one battery to another while enabling the batteries to be continuously connected.

  7. Nickel–metal hydride battery - Wikipedia

    en.wikipedia.org/wiki/Nickel–metal_hydride_battery

    Retention of charge depends in large part on the battery's leakage resistance (the higher the better), and on its physical size and charge capacity. Separators keep the two electrodes apart to slow electrical discharge while allowing the transport of ionic charge carriers that close the circuit during the passage of current . [ 35 ]

  8. Battery management system - Wikipedia

    en.wikipedia.org/wiki/Battery_management_system

    A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack) by facilitating the safe usage and a long life of the battery in practical scenarios while monitoring and estimating its various states (such as state of health and state of charge), [1] calculating secondary data, reporting that data, controlling its environment ...

  9. Lithium iron phosphate battery - Wikipedia

    en.wikipedia.org/wiki/Lithium_iron_phosphate_battery

    Lithium iron phosphate modules, each 700 Ah, 3.25 V. Two modules are wired in parallel to create a single 3.25 V 1400 Ah battery pack with a capacity of 4.55 kWh. Cell voltage Minimum discharge voltage = 2.0-2.8 V [27] [28] [29] Working voltage = 3.0 ~ 3.3 V; Maximum charge voltage = 3.60-3.65 V [30] [28] Volumetric energy density = 220 Wh/L ...

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