Making sense of batteries

Discussion in 'Misc. Quadcopter & Multirotor discussions' started by rwid, Jun 8, 2018.

  1. rwid

    rwid New Member

    I have a bugs2w and a Hubsan Quads 501s. Love the flight time of the Hubsan Quads, 20 min with the video running. My bugs is only 10 min with video running. I took the Hubsan Quads 2700 mAh battery and put a xt30 connector on it and put it in my bugs. I thought for sure I would get longer flight time. Not the case. It was merely the same. 10 min. Can someone help me make sense of that?
     
  2. webman

    webman Administrator Staff Member

    The only thing that comes to mind - at first glance - is that the weight of a certain battery often 100% does away with any advantages in additional power. Some of the longest flying birds are due to weight shaved off both the battery and the machine (Mavic Air, Parrot BeBop 2 and their new announced bird, etc.).

    In addition to the brute force of lifting weight, there is a careful match between the props, esc. and battery output as well as total package weight.

    Flight times longer than 12-13 minutes require careful engineering - not usually something that just messing around can accomplish.
     
  3. RGJameson

    RGJameson Active Member

    It is odd as the due to the BUG's proprietary battery sled the naked 501s battery is about the same weight.

    That said the BUGS is rated at 25C, so we get 1.8 x 25 = 45A rating. The 501s battery is only 10C,
    so we get 2.7 x 10 = 27A rating. Could that be it? Maybe.
     

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