6S 10,000mAh Vs. a 6S 12,000mAh. (non-scientific experiment.)

photojunky

photojunky

Well-Known Member
I was bored and stuck at home with a bad back so I made a video comparing a 6S 10,000mAh Vs. a 6S 12,000mAh. It was a very non-scientific experiment.

Wanted to see if the heavier battery with slightly more capacity would last longer than the lighter battery with slightly less capacity. I flew my hexacopter for 4 minutes and measure voltage loss.


If I were to buy one more, I wonder if the hexacopter could handle two of the heavier batteries or if I should get the lighter one.


 
Here's my take on this, I may be wrong, Quadcopters are engineered to take into consideration the amount of weight in addition to its own weight to carry and maintain their flight aerodynamics for a stable flight. Adding weight will affect the aerodynamics considerably. So, adding a second battery will have profound affect on the aerodynamics of the quadcopter. Additionally, the power to weight ratio will be diminished to where the rotors may not have sufficient lift to take off and/or maintain an altitude that would have normally been achieved using a single battery approved for the quadcopter. I am not an engineer, but I think this principle would be true for most any aircraft.
 
LoneRCRanger said:
Here's my take on this, I may be wrong, Quadcopters are engineered to take into consideration the amount of weight in addition to its own weight to carry and maintain their flight aerodynamics for a stable flight. Adding weight will affect the aerodynamics considerably. So, adding a second battery will have profound affect on the aerodynamics of the quadcopter. Additionally, the power to weight ratio will be diminished to where the rotors may not have sufficient lift to take off and/or maintain an altitude that would have normally been achieved using a single battery approved for the quadcopter. I am not an engineer, but I think this principle would be true for most any aircraft.
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I agree and disagree with you. By adding an extra battery, if you do it properly, it will not necessarily affect the aerodynamics if the battery is balanced properly and the additional weight is not to the front, back, or side, but simply centered. What would be affected is the motors ability to create lift like you said. Would there be enough lift to lift the extra weight? I know people do this all the time, but I'm not sure if this drone would be strong enough to do it although I have attached a 5 lb weight which did not seem to be an issue. But like I said, I am stuck at home with a bad back and had nothing better to do :-)
 
I saw a YouTube video of a guy lifting a 5 gallon water jug (with 37.5 pounds of water in it) with a drone to an altitude of 25 feet and hold it there for 5 minutes. It must have been quite a drone to do that.
 
The main problem is weight. At some point the extra weight of the battery cost more power than it gives. Problem with two smaller capacity batteries vs one equal to the two is that you have packaging, wires, and a plug that add the weight for each pack you have. Some companies make xS2P battery packs which is the same in principle minus most of the packaging.

If you really wanted to improve efficiency you could use expendable power cells, just have multiple batteries and drop them off as you expend them :p
 
Make more test you will know which one is fit you. High capacity means heavy weight, but not high capacity flight longer, different brands battery will get different flight time. And there is a question: does your batteries are the same brand?
 
Diven said:
Make more test you will know which one is fit you. High capacity means heavy weight, but not high capacity flight longer, different brands battery will get different flight time. And there is a question: does your batteries are the same brand?
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Like I said, non scientific experiments. They are different brands.
 
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