title_body: Alternatives to LiPo batteries LiPo is often the first choice of battery due to its high discharge rate and high specific energy (100 - 265 Wh/kg), defined as its energy per unit mass.
  
  In terms of these two characteristics, what type of batteries are next best alternatives to LiPo?
upvoted_answer: Many people choose to use Lithium Ion batteries on long range builds.
  
  They have a very large capacity and I have seen them give in excess of 20 minutes of flight on a quadcopter.
  
  The reason that they aren’t often used for other purposes is that their current output is less than LiPo batteries.
  
  This means that whilst they are good for long range flight, they lack the power for aerobatics and racing.