To represent this in the flight time calculator enter the value 80% in the discharge field. I have tested this calculator on a few drones that I got the opportunity to fly and found this quite accurate. In practice, loads change as you might want to add additional gears to your drone (prop guards, extra battery, bigger camera, etc.). Drone flight time varies with manufacturer, model as well as your battery condition. You can learn more about our editorial and affiliate policy here. To take into account the variations, we use the average value. The simplest bluetooth terminal for Bluetooth-based DIY projects. By using our services, you agree to our use of cookies, By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments. It is basically a parameter that depends on how efficient the motors are. Add to Wishlist. Discharge: LiPo batteries can be permanently damaged if they are fully discharged. Lines and paragraphs break automatically. The greater the number, the more energy the battery stores. Average Amp Draw: To work out the value for average amp draw, you’ll need to know the all up weight (AUW) of your drone and relate this to thrust and amp values found in the datasheet for your motor/prop configuration. The flight time calculator requires the value to be given in Ah (amp hours). Writing about drones helps me keep in touch with the hobby I love. 5 Tips to increase drone range. Brushless motors have a value between 80 & 120 watts per kg and Brushed motors have a higher value of around 150 – 180 watts per kg. The output voltage is always written on the bottom of the battery, and it remains fixed for the most part of the battery operations (it plummets greatly when the battery discharges below a certain point, see battery discharge profile chart). Receive our weekly newsletter about latest happenings in the world of drones, discounts, new releases, contests and much more! In such situations, you might want to re-calculate your drone battery life or flight time. The battery capacity is also written on the pack and is denoted in milliampere-hour (mAh). Flight time is one of the first and most important parameters you check for before buying a drone. Battery Capacity: This value can usually be found printed on your battery. Install. Power to Weight ratio (P) = We use ‘P’ to describe how much power the motors need to lift one unit of weight. A heavy drone with a smaller battery will have shorter flight time compared to a lighter drone with a relatively bigger battery. Or do you just want to estimate how well the drone you're making will fly? Once we have the average current, we will just divide the total available capacity ( C) of the battery by that current and we will have the flight time in hours. I am the founder of FTD. Normally the value will be given in mAh (milliamp hours). I have a degree in Mechanical Engineering and have a passion for rotary and fixed-wing drones. Are you shortlisting components for your next drone build? Finally, if you are involved in FPV racing, and are flying at high throttle levels, your flight times will degrade dramatically. If you have any suggestions, you can reach out to me at ahmed (at) flythatdrone.com. Allowed HTML tags:
    1. . Whatever it may be, you will find this app useful. Plan your flight, fly autonomously, focus on recording your videos. Average Current Draw (ACD) = ACD is the average current all the motors draw from the battery. Just multiply your answer with 60 to convert it to Minutes. If you want to say 'hi', you can can find me on twitter handle @ahmednabik, DJI Mavic Mini 2 Review – Perfect Size For the Perfect Price, How To Find A Lost Drone Without A Tracker? If each motor draws 4amps to produce 500g of thrust, then your average current draw will be 16amps. Battery Discharge Margin (BDM) = It is highly recommended that the battery should never be discharged completely. The idea is to work out how many amps your multirotor will draw to maintain a stable hover (note we are taking a stable hover to represent average flight). First, we are going to calculate the average current the motors will be drawing from the battery to support a the total weight. If you would like to more accurately model your multirotor setup and evaluate lots more parameters, there are other, more technical web-based flight time calculators. Receive our weekly newsletter about latest happenings in the world of drones, discounts, new releases, contests and much more! This Drone flight time calculator will help you accurately calculate your time in the air. Whatever it may be, you will find this app useful. Doing so will not only lessen its life, but it also puts your drone at risk of falling out of the sky dead if the battery suddenly plummets. In respect of this, it's common practice to not discharge your LiPo batteries below 20% mAh during flight; this is known as the '80% rule'. RedWaypoint PRO for DJI (Mavic Mini compatible), Cookies help us deliver our services. Drone Flight Time Calculator COVID-19 Update: Flying Tech is open and shipping daily, however our phone support is limited so please email us if possible. Input your drone specs to get accurate flight time. Thanks to all of our customers for their support at this difficult time and stay safe. Specialist in Multirotor Tech & FPV Equipment. Everyone. For this calculator, I have put a default value of 80% which means, we will only use the 80% of the total capacity to calculate the flight time and keep 20% as a safety margin. Flying in a strong cross wind can also have a huge effect on the current draw of the motors. One of the main considerations when building or buying a drone is flight time. We use average because the actual current draw varies greatly during different flight stages and depends on the mode of operation (full throttle flight draws more current than mellow flying). 8 Ways to Increase Your Recovery Chances, What Is Headless Mode On A Drone? Most manufacturers advertise the flight time in their drone specs, but these are not always accurate because these timings are under standard load and lab conditions. It includes the weight of the drone itself, any added accessories, and most importantly the battery. Note: If you use mAh as a Capacity unit and Kg as your unit of weight, you will get the time in Hours. A higher capacity battery will be able to provide continuous electric energy for a longer time. Obviously this is a very simplistic calculator as it doesn’t take into account numerous factors, among them flying styling and weather conditions. Shlok Jhawar Tools. If you find this calculator useful, please feel free to share it with your friends. Whenever you do any maneuvering, other than a controlled steady hover in calm air, one or more of the motors will have to spin faster, and thus pull more current.