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Aventon's Pace 500.3 is an average budget-friendly cruiser-style e-bike. It has an upright design with swept-back handlebars, a cushioned saddle, and puncture-resistant tires. Designed for leisurely rides, or comfortable cruising with a 500-watt rear hub motor that has a 28 mph top speed and up to 60 miles in range. [6]
The lifespan of a battery pack varies depending on the type of usage. Shallow discharge/recharge cycles help extend the overall battery life. Range is a key consideration with e-bikes, and is affected by factors such as motor efficiency, battery capacity, efficiency of the driving electronics, aerodynamics, hills and weight of the bike and rider.
Mercury battery "РЦ-53М"(RTs-53M), Russian manufactured in 1989. A mercury battery (also called mercuric oxide battery, mercury cell, button cell, or Ruben-Mallory [1]) is a non-rechargeable electrochemical battery, a primary cell. Mercury batteries use a reaction between mercuric oxide and zinc electrodes in an alkaline electrolyte.
The lead-acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. It is the first type of rechargeable battery ever created. Compared to modern rechargeable batteries, lead-acid batteries have relatively low energy density. Despite this, they are able to supply high surge currents.
In 1948, Whizzer sold its first pre-assembled motorized bicycle, the "Pacemaker", for US$199.50 (equivalent to $2,500 in 2023). [ 1 ] The "Sportsman" – featuring 138cc, 3 hp engine, 20" wheels, kick starter and drum brakes – was released in 1949 for US$224.50 (equivalent to $2,900 in 2023), and US$239.50 (equivalent to $3,100 in 2023) for ...
Anthony J. Adducci (August 14, 1937 – September 19, 2006) was a pioneer of the medical device industry in Minnesota. He is best known for co-founding Cardiac Pacemakers, Inc., the company that manufactured the world's first lithium battery-powered artificial pacemaker.
The repaired 1971 Dodge Challenger pace car. For 1971, none of the Big Three auto manufacturers chose to supply a pace car for the Indianapolis 500, as the muscle car market had dried up and marketing efforts were shifted elsewhere. Four local Indianapolis-area Dodge dealers, spearheaded by Eldon Palmer, stepped up to supply the fleet of pace cars.
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 ...