title_body: How long does a LiPo battery last and how do I know if it needs replacing? I have an old LiPo battery, how long is a LiPo battery usually supposed to last? How will one know if it needs to be replaced?
upvoted_answer: How long is a LiPo battery usually supposed to last?
  
  
  Most LiPo batteries are not rated to last longer than 300 charge cycles. That is the battery fully draining and charging again. However, measuring a LiPo battery’s lifespan may not be practical, as batteries go through varying depths of discharge when they are used.
  
  Many manufacturers have stated that their LiPo batteries will last 2 or 3 years. This is a somewhat realistic approximation for a scenario where a battery is regularly used and charged around 2 or 3 times a week. 
  
  
    How will one know if it needs to be replaced?
  
  
  After a LiPo battery goes past its lifespan, it can't hold as much charge anymore, so look for signs that it doesn't last as long as it used to on 'full charge'.