This post may contain affiliate links, which help to keep Discerning Cyclist rolling. Learn more<\/a>.<\/p>\n<\/p><\/div>\n Electric bikes are an excellent and practical mode of transportation, but you may have some questions about their power consumption and charging requirements. To determine how much power your e-bike uses, you need to consider a few factors. Additionally, it\u2019s important to think about the battery\u2019s replacement cost since it\u2019s a significant expense.<\/p>\n As an e-bike rider, you\u2019re probably familiar with the idea of power. It\u2019s a measure of how much work you can do, and having more of it means you can accelerate quickly or climb hills faster without losing speed. In cars and bikes, we use horsepower to measure power, so it\u2019s easy to understand the difference between vehicles with different horsepower.<\/p>\n A kilowatt is a different unit of power typically used with the metric system and is used in the US to measure the power of electric motors. A kilowatt is equal to around 1.34 horsepower. It is equally accurate to state that a compact motorcycle with 10 horsepower has around 7 kilowatts.<\/p>\n However, when it comes to electric bikes<\/a>, a kilowatt, which is 1,000 watts, is often a large unit. That\u2019s why e-bikes are typically rated in unprefixed watts, with power output ranging from around 250 to 900 watts. To give you a sense of how that translates to horsepower, it\u2019s roughly 1.2 hp or one-third of a horsepower. Just like other vehicles, an e-bike with higher power can travel faster and carry more weight uphill at higher speeds.<\/p>\n This post was written in collaboration with electric bike specialists, Addmotor<\/a>.<\/em><\/strong><\/p>\n To understand what power means in practical terms, we can compare it to the energy expended by a typical rider on a regular bicycle. For example, it takes around 30 watts to pedal at a non-sporting rider\u2019s typical cruising pace of 9 mph, which is roughly equivalent to walking normally. However, when pedaling at speeds of up to 20 mph, it takes about 220 watts, which is more than most non-athletes can sustain due to the rapidly increasing aerodynamic loads.<\/p>\n The power output of an e-bike\u2019s onboard motor is measured in watts<\/a>. To determine the rating, you multiply the maximum current (in amps) flowing from the battery to the motor by the battery\u2019s voltage. For instance, an e-bike motor with a 540W output would be powered by a 36V battery and a 15A controller.<\/p>\n Electric bike batteries typically have a capacity ranging from 250Wh to 500Wh, although 750Wh batteries are becoming more common as battery technology improves (especially for heavier models, such as electric fat bikes<\/a>). In some cases, electric motorcycles even feature two battery connectors to extend their range.<\/p>\n Watts and electric bike motors are a touchy subject. Higher wattage e-bike motors will provide quicker acceleration, more power while climbing hills, and overall better performance for larger riders.<\/p>\n However, electric bikes typically aren\u2019t as efficient as your typical runabout. This is because a higher wattage motor will drain the battery faster, resulting in reduced range for the rider. Therefore, it\u2019s essential to consider the wattage of an e-bike when choosing one.<\/p>\nE-Bike Wattage<\/strong><\/h3>\n
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Does Higher Wattage Mean a Better eBike?<\/strong><\/h3>\n
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